Security
Robert Scoble
Technology news, videos, opinions, from an enthusiastic Rackspace employee who grew up in Silicon Valley and has interviewed more than 3,200 geeks.262,204 followers | Follow
Microsoft Research
Microsoft Research is dedicated to conducting both basic and applied research in computer science and software engineering.65,081 followers | Follow
Robert Siciliano
http://en.wikipedia.org/wiki/Robert_Siciliano Personal security and identity theft expert.46,626 followers | Follow
Danger Room
Noah Shachtman, Spencer Ackerman, and WIRED's national security dorks.34,963 followers | Follow
Mikko Hypponen
CRO at F-Secure. Malware Adventurer. World Champion in Xevious.29,509 followers | Follow
Security Response
We are the official security response team at Microsoft.25,504 followers | Follow
Security Stuff
News and alerts related to cyber security by @esawdust. Also see @sensorstuff, @batterystuff, @gpsstuff, @onlyopensource, @avrstuff21,048 followers | Follow
briankrebs
computer, internet security journalist, writes about cyber crime. wrote for The Washington Post '95-'0919,255 followers | Follow
Check Point Software
Our on-going vision is making Internet communications and critical data secure, reliable and available everywhere. Tweets by @PhoneBoy and @s_look.18,496 followers | Follow
Schneier Blog
Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru"17,890 followers | Follow
Graham Cluley
Naked Security chap at Sophos. Viruses, spam, computer security, that kind of stuff. Named 'Twitter user of the year' by Computer Weekly in 2009 and 2010.17,342 followers | Follow
Homeland Sec News
Follow several of the top blogs and news on Homeland Security.17,195 followers | Follow
Thom VanHorn
VP of Marketing for Application Security, Inc., The Leader in Database Security, Risk, & Compliance - - Owner of Artists+Authors Rare Books, Fine Art16,423 followers | Follow
Roger Halbheer
Worldwide Chief Security Advisor, Microsoft Corporation, CISSP, Master of Computer Science15,650 followers | Follow
Security Twits
A place to find information security folks. For retweets, @ or DM me or tag posts with #infosecjobs for infosec jobs, #infosecq for questions, and #infoseccfp.15,591 followers | Follow
Richard Bejtlich
Chief Security Officer, MANDIANT. TaoSecurity blogger. Author. Black Hat instructor.12,290 followers | Follow
Paul Asadoorian
PaulDotCom Podcast & Blog, dedicated to providing the latest information security news.11,552 followers | Follow
Jeremiah Grossman
Founder & CTO of WhiteHat Security, Web security enthusiast, hacker, 6-continent public speaker, TED alumni, Maui resident, Brazilian Jiu-Jitsu Black Belt.11,382 followers | Follow
Team Cymru
Specialized Internet security research firm and 501(c)3 non-profit dedicated to making the Internet more secure.10,732 followers | Follow
Kevin Poulsen
Kevin Poulsen is the news editor at Wired.com,and the author of the cybercrime book KINGPIN (Crown, 2011)10,635 followers | Follow
The Dark Tangent
10,600 followers | Follow
Ken Craggs
Interests include the Internet of Things, Semantic Web, Social Media, Citizen Journalism.....10,455 followers | Follow
Jart Armin
I walk around feeling a sort of existential guilt all the time; and honestly for me the internet is a way of feeling less guilty about the universe10,434 followers | Follow
David Hoelzer
Tweet feed for valuable IT Audit & Security resources from David Hoelzer & the SANS Institute. Visit us at http://auditcasts.com10,314 followers | Follow
Web Security News
Web Security News is a digest of important security announcements and events about web application security techniques and strategies.10,116 followers | Follow
helpnetsecurity
Mirko Zorz, Editor in Chief of Help Net Security and (IN)SECURE Magazine.10,041 followers | Follow
Hacking Exposed
Based on the best-selling security book, Hacking Exposed, by Stuart McClure, Joel Scambray, and George Kurtz.9,101 followers | Follow
Dave Kennedy (ReL1K)
CSO of a Fortune 1000, Jarhead, Christian, Founder DerbyCon, Creator of Social-Engineer Toolkit, FastTrack, Artillery, Author, exploits, Father/Hubby, Hugger8,692 followers | Follow
securityninja
Doing Application Security in the Product Management team at Realex Payments8,575 followers | Follow
Web of Trust
WOT is a free safe surfing tool that tells you which websites you can trust based on other users' experiences. Free download for all major browsers.8,570 followers | Follow
securitypro2009
Information Security Pro, Compliance visionary, Entrepreneur, World Traveler, and Business Management Techophile.8,395 followers | Follow
Lenny Zeltser
Sharing thoughts on IT with a strong focus on information security8,177 followers | Follow
Ryan Dewhurst
Ethical Hacking Graduate / Security Enthusiast / Security Engineer7,909 followers | Follow
SecurityWeek
Internet and Enterprise Security News, Threats, Insights and Expert Analysis.7,757 followers | Follow
Alexander Sotirov
Co-founder and Chief Scientist at Trail of Bits, Inc. Occasional rockstar.7,013 followers | Follow
Chris Hadnagy
6,910 followers | Follow
Bob Gourley
A CTO. Also find me @CTOvision and @CTOlist. National Security, Cyber Security, Enterprise IT and tech fun are key topics of interest.6,868 followers | Follow
Nadim Kobeissi
@Cryptocatapp & @PotionIO Developer. Information Freedom, Activism and the Internet Final Frontier. Cryptography and Foreign Affairs.6,823 followers | Follow
Global Integrity
Tracking governance, transparency, open data, & corruption issues from a global, bottom-up, gov2.0 perspective. Features gossip & what we do: http://ow.ly/9jIa.6,612 followers | Follow
Allen Kelly
I love sports and technology. I work for @Symantec | website | security | social media | The opinions expressed here are my own.6,578 followers | Follow
Kim Zetter
Senior reporter for Wired covering cybercrime, civil liberties, privacy, and security.6,550 followers | Follow
attrition.org
attrition.org staff share this account. if we follow you, we really like you... or we really dislike you.6,440 followers | Follow
SearchSecurity.com
The latest cybersecurity news, tips and features from the reporters and editors of SearchSecurity.com. Security threats, data breaches, research and more.6,235 followers | Follow
The Hacker Academy
The Hacker Academy is a premium membership community for beginner, intermediate and advanced information security professionals who want more out of training.6,193 followers | Follow
Darknet.org.uk
The Darkside. Ethical Hacking, Penetration Testing & Computer Security.6,020 followers | Follow
Rop Gonggrijp
5,974 followers | Follow
Dancho Danchev
Independent Cyber Threats Analyst, OSINT/Cyber CI Analyst, ZDNet.com Blogger, Security Blogger at Webroot5,925 followers | Follow
Security Humor
Official Cyb*rsecurity Jester. Your access here is protected by the United Nations as an inhuman right.5,746 followers | Follow
Dr. Anton Chuvakin
Information security: SIEM, log management, vulnerability management, PCI DSS, GRC... now at Gartner, Inc!5,522 followers | Follow
Craig Rowe
President and CEO of ClearRisk Inc. I tweet about all areas of risk management to educate and inform SMBs, insurance brokers, and professionals in the industry.5,457 followers | Follow
Christophe Veltsos
InfoSec, Risk, and Privacy Strategist. More at www.linkedin.com/in/chrisveltsos5,418 followers | Follow
arbornetworks
Arbor Networks provides security and network management solutions for Internet service providers and large enterprise networks.5,357 followers | Follow
ChrisJohnRiley ♻
--== I'm just this guy, you know! ==-- :: Penetration Tester :: Blogger (@catch22insec) :: Podcaster (@eurotrashsec)5,351 followers | Follow
ethicalhacker
The Ethical Hacker Network, a Free Online Magazine for Security Pros5,126 followers | Follow
The Hacker's Choice
The oldest and still active security research group - The Hacker's Choice. (Founded 1995)5,090 followers | Follow
Axis Communications
Axis is an IT company offering network video solutions for professional installations. (@lenaheden @dlocapo tweeting)4,917 followers | Follow
Hacker News 20
Tweeting Hacker News stories as soon as they reach 20 points. Maintained by @jeffmiller. There's also @newsyc50, @newsyc100, @newsyc150.4,752 followers | Follow
Hacker Fantastic
Hacker Fantastic is a whitehat Hacker who enjoys writing software, tinkering with computers and everything security related.4,581 followers | Follow
Infowar Monitor
The Information Warfare Monitor is a joint project of The SecDev Group and the Citizen Lab, an interdisciplinary laboratory based at the University of Toronto4,356 followers | Follow
Joey Tyson
Links/discussion on security, privacy, social networking, & random geekery; enjoy! I work for Facebook, but all opinions/thoughts are my own and NOT Facebook's.4,226 followers | Follow
SecurityXploded
Popular Infosec Research portal offering more than 80 FREE Security/Password Recovery Tools, Research Articles and FREE Training on Reversing/Malware Analysis.4,226 followers | Follow
CA Security
News and insights on Security and Identity and Access Management from CA Technologies.4,187 followers | Follow
Digital Crimes Unit
Transforming the fight against digital crime with partnerships and legal and technical breakthroughs that destroy the way cybercriminals operate.4,114 followers | Follow
Kirt Cathey
Staring in the face of retirement while mulling how to pay for college for two kids and my second childhood.4,060 followers | Follow
indi303 & lizborden
The horsemen of the Security Apok bring the first no BS InfoSec Show.4,049 followers | Follow
EDU Info Security
Information Security news, risks and advice, brought to you by Steve Werby.3,849 followers | Follow
David Litchfield
Computer security researcher working for Accuvant; photographer; shark enthusiast3,721 followers | Follow
CyberSecureInstitute
DC-based cyber security advocacy and analysis group. Providing the latest news and insightful commentary from around the web.3,700 followers | Follow
SocialMediaSecurity
News, articles, guides, presentations and more about the insecurity of social media.3,689 followers | Follow
George Kurtz
President & CEO CrowdStrike, Former CEO of Foundstone, Former CTO of McAfee, and Co-Author of Hacking Exposed3,618 followers | Follow
Errata Security
Errata Security is a consulting company comprised of cutting edge computer security researchers and developers. (Tweets by Marisa)3,526 followers | Follow
IBMSecuritySolutions
End-to-end risk management solutions from IBM protect against threats while reducing the cost and complexity of security.3,504 followers | Follow
Symantec.cloud
The Official Symantec.cloud Tweets including MessageLabs intelligence - contacts: http://tinyurl.com/mlprc3,485 followers | Follow
EC-COUNCIL
The Leading IT Security Certification Body. Creator of world renowned Certified Ethical Hacker program, C|EH & other certifications. http://www.eccouncil.org3,436 followers | Follow
BreakingPoint
BreakingPoint next-generation performance and security testing products harden the resiliency of vulnerable converged networks and train cyber warriors.3,362 followers | Follow
Mike Rothman
Securosis Analyst. Security industry veteran. I say what you are thinking. Author of Pragmatic CSO.3,355 followers | Follow
Spy Scroll
News on spies, espionage, CIA, intelligence. Independent, unaffiliated. Appearance of a link is not necessarily an endorsement.3,304 followers | Follow
adam shostack
Working to reduce bad security outcomes. Representing myself here on Twitter.3,255 followers | Follow
Dave Whitelegg
UK based Information Security Expert, Blogger, Writer, Presenter & Security Professional (CISSP CCSP ISO27001 Lead Auditor). Get Secure, Be Secure & Stay Secure3,190 followers | Follow
TeamShatter
We tweet about database security, risk, and complaince news, recent breaches, and more. Maintained by TeamShatter at Application Security, Inc.3,151 followers | Follow
CyberCrime101
A podcast that covers everything from Computer & Internet Safety to Information Security & Computer Forensics, hosted by Joe Garcia (@jgarcia62)3,131 followers | Follow
FishNet Security
FishNet Security, an information security solutions provider, helps organizations to manage risks, maintain compliance, & maximize operational efficiency.3,088 followers | Follow
Chris Ensey
Director of Government Security Solutions, SafeNet Inc. Here to learn, collaborate and connect. Tweets are my own opinion and not that of my employer.3,051 followers | Follow
Andre M. DiMino
I follow botnets/malware/e-crime threats. $Dayjob==Digital forensics. Researcher with DeepEnd Research http://www.linkedin.com/in/adimino3,043 followers | Follow
Jeffrey Carr
author, 'inside Cyber Warfare' (O'Reilly Media 2009); CEO, Taia Global, Inc.2,990 followers | Follow
Cesar Cerrudo
Leading IOActive Labs team in producing ongoing cutting edge research in the areas of SCADA, mobile device, software security and more. CEO of Argeniss Software2,963 followers | Follow
The H - News
2,904 followers | Follow
secureslinger
Information Security professional, concerned about home users, corporate users, and the information they are trying to keep private2,826 followers | Follow
riskybusiness
The Twitter feed of Patrick Gray, presenter of the Risky Business security podcast...2,811 followers | Follow
Security Watch
The latest updates on computer security, malware, and viruses2,789 followers | Follow
Shadowserver
A non-profit, watchdog group of security professionals that gather, track, and report on malware, botnet activity, and e-fraud2,767 followers | Follow
Pedram Amini
I tweet about science, infosec, some politics and things that make me laugh.2,764 followers | Follow
AccessData
See new videos, resources & industry news from AccessData, a leading provider of E-Discovery, Forensics & Cyber Security software.2,758 followers | Follow
Ashley Marshall
I work for Application Security Inc. in europe. AppSecInc has pioneered database security, risk, and compliance solutions for the enterprise.2,657 followers | Follow
anthonymfreed
Editor, Researcher, Analyst and Freelance Writer - http://www.linkedin.com/in/anthonymfreed2,653 followers | Follow
Web Security
All about web security and daily software vulnerability reports2,608 followers | Follow
Ben Rothke
Manager - Information Security - Wyndham Worldwide Corp. Writer & author of security books/articles. Views expressed here are mine & not the views of Wyndham.2,587 followers | Follow
Nicolas Brulez
Senior Virus Researcher @Kaspersky lab / Co-Author of the Armadillo protection system. Reverse Engineering Rockstar #CannibalCorpse fan. Tweets are my own2,573 followers | Follow
PrivateProxy
Protect your Internet identity by surfing anonymously with Private Proxy.2,570 followers | Follow
Tracy Kitten
BankInfoSecurity.com is a leading site dedicated to security news and fraud trends impacting the financial space.2,567 followers | Follow
SecurityInfoWatch
SecurityInfoWatch.com is a news and information website for security industry. Twitter feed updated by Geoff Kohl.2,513 followers | Follow
Voltage Security
Encryption that just works. Voltage Security is the leading innovator of enterprise and payment card data protection solutions inside and outside the cloud2,487 followers | Follow
sharpesecurity
Malware reverse engineering, IR, forensics, RAM dump analysis, software packaging, automation2,417 followers | Follow
Seccom Global
Seccom Global is an information security provider that offers managed services and technologies to help businesses and government manage information risk2,399 followers | Follow
eDiscovery News
2,393 followers | Follow
Dell SecureWorks
Information Security and Network Security Professional, protecting and securing networks with latest up-to-date security research and threat analysis.2,339 followers | Follow
Alex Ionescu
Windows Internals Expert, Security Ninja, and Embedded ARM Kernel Guru.2,326 followers | Follow
Joel Langill
control system security consultant & researcher, ethical hacker, SCADAsec instructor, functional safety engineer, cyber soldier.2,270 followers | Follow
MSK Security
MSK Security - Network and Internet Security. Saas Security, Cloud Security, Non-Linear Authentication. Business, tech, VC, money, cars, SoCal business2,270 followers | Follow
Humancapblog
A team of professionals focused on communicating with organizations about maximizing Human Capital. Our Parent organization is a Risk Management Dynamo.2,210 followers | Follow
Tripwire, Inc.
We want to help you take control of your IT infrastructure with the best IT security and compliance automation solutions.2,197 followers | Follow
ITCompliance
SearchCompliance.com helps IT professionals manage information systems and IT to improve compliance processes and results.2,098 followers | Follow
Astalavista.com
Astalavista.com - The IT news and security community - Get Premium now!2,060 followers | Follow
e-Crime Wales
IT security advice, news and alerts from the e-Crime Wales team. Winner of the Special Award for Cooperation at the 2011 Nominet Internet Awards.2,033 followers | Follow
Phil Agcaoili
Leader | Visionary | Change Agent Ⓐ Entrepreneur | Connector | Technologist | Information Security, Cyber Security, & Risk Maven ☠ Lifelong Mixed Martial Artist1,948 followers | Follow
Pedro Bueno
Information Security Professional, SANS Institute Internet Storm Center Incident Handler, Security and Malware Researcher1,926 followers | Follow
:::{ Virus Vzla }:::
Nokia Developer Champion, Blogger, Photographer, Graphic Designer. Club Nokia Venezuela (Founder & Webmaster), Technology Addicted.1,925 followers | Follow
IDGuardian
Tweets on improving your personal and professional security, both online and in the real world, from the contributing voices of IDGuardian.com.1,882 followers | Follow
Entrust SSL
Powered by proven certificate discovery and management platforms, Entrust helps organizations find, inventory, purchase and renew SSL digital certificates for1,845 followers | Follow
Sean Sullivan
Security Advisor @ F-Secure Corporation ~ Political scientist, geographer, technician, researcher, blogger. I want to be a behavioral economist in my next life…1,809 followers | Follow
CISSP CERTIFICATION
This is a defunct site for isc2_cissp. Please follow at @isc2 or go to our website for more info.1,783 followers | Follow
Tracy Kitten
Tracy Kitten is a managing editor for BankInfoSecurity.com, a media site dedicated to news and views on information security, risk management and privacy.1,773 followers | Follow
Twitt Security
Security News picked, filtered and posted by computers and humans1,751 followers | Follow
Rodrigo Branco
1,726 followers | Follow
Web Security News
News, tips and latest posts on web security, web application protection, hacker incidents and related cyber-stuff1,684 followers | Follow
PayJunction
Registered Agent for PayJunction: Payment Gateway and Merchant Processor in one. We simplify and save with one easy to use solution: the Trinity System.1,668 followers | Follow
Endpoint_Security
Endpoint Security is the security of physical devices which may literally fall into the hands of malicious users.1,655 followers | Follow
peterkruse
Peter Kruse is a eCrime specialist working with CSIS Security Group A/S in Denmark.1,587 followers | Follow
Thierry Zoller
The views and opinions expressed are my personal views and are not intended to reflect the views of my employer or any other entity.1,546 followers | Follow
Rebecca Mangan
ASIS International: The leader in Security Education. Security education your way: classroom programs, webinars, custom on-site training. http://bit.ly/aRxnWg1,513 followers | Follow
Sean Whetstone
IT Professional with an Interest in IT Data Information Security & ISO27001 Certification in the UK. Keeping an eye on IT Data Security News1,479 followers | Follow
Dinis Cruz
Web Application security consultant. #O2Platform main developer - http://www.o2platform.com1,478 followers | Follow
Michelle L. Kincaid
Cybersecurity & tech policy geek. Freelance writer at ClearanceJobs.com. Founder of CybersecurityNews.org.1,474 followers | Follow
Safe Internet
Alliance of orgs trying to promote a safe Internet & better educate/protect users, especially kids, teens & elderly, from Internet corruption, crime, &a1,468 followers | Follow
EvilFingers
Information Security division of DigitOnto, created in 2006. DigitOnto LLC is a small business firm (regd. 2010), located in Northern Virginia.1,432 followers | Follow
TechWebSecurity
This is the official source for technology security news from TechWeb sites.1,423 followers | Follow
Adam Laurie
Security researcher, DEFCON goon (Major Malfunction), DC4420 POC, director of Aperture Labs Ltd.1,380 followers | Follow
Vadim Toptunov
Information Security Consultant, Penetration Tester, Network Engineer, Human.1,370 followers | Follow
Cyberwarzone
The website for world wide information about Cyber crime, cyber warfare, cyber fraud and more.1,330 followers | Follow
Fraud Consulting
We provide vendor independent services to ensure that your business is able to identify and prevent #fraud1,307 followers | Follow
Jason M Oliver
My name is Jason. I'm a security evangelist, technology innovator, former DJ, and health enthusiast.1,276 followers | Follow
Tyler Shields
Mobile, application, and social networking security focus. Industry conference speaker, and security researcher. Business strategist and entrepreneur.1,244 followers | Follow
oliver day
security researcher interested in the integration of biostatistics and computer science.1,235 followers | Follow
UBERSEC Jacob
#infosec, CISSP, GCFA Cyber Security Professional, Cod3r, Digital Forensics Analyst, Network Administrator and Information System Security guru.1,223 followers | Follow
IS Decisions
IS Decisions is a software vendor specializing in Infrastructure & Security Management solutions for Windows. We also love sharing Microsoft & IT Security news.1,216 followers | Follow
ncircletweets
nCircle is the leading provider of Information Risk & Security Performance Management Solutions http://www.ncircle.com/index.php?s=company1,206 followers | Follow
Maximiliano Soler
Security Researcher & Enthusiast. FireCAT | OWASP Mantra | #ToolsWatch | #EKOParty Fan1,202 followers | Follow
Thorsten Holz
1,196 followers | Follow
SecurityBuzz
Find out about developments & technologies shaping the future of security & cloud computing.1,184 followers | Follow
Mike Fitzpatrick
Founder and CEO of NCX Group, We Specialize in Information Risk. I'm a Serial Entrepreneur, Speaker, Visionary, Talk Radio Host.1,168 followers | Follow
Registered Works
Your 1st Line Of Defense For Protection Of Your Intellectual & Digital Property1,121 followers | Follow
Allan Pratt, MBA
Tech & Cyber-Security Pro. Tweets focus on tech news, cyber-security, networking, infrastructure, data protection, consumer electronics, and social media.1,110 followers | Follow
Cricket Liu
Vice President of Architecture at Infoblox, coauthor of O'Reilly Media's DNS and BIND.1,105 followers | Follow
Daniel Snyder
Inspired tweets about Technology, Info Security, Social Media & Blogging. Bringing a positive and thought provoking message to the web.1,104 followers | Follow
Jill Armour
1,102 followers | Follow
Darryl MacLeod
#Infosec Pro | CISSP | @AtlSecCon Board Member | @CapeBretonTUG Founder | my views are my own, not my employer's1,084 followers | Follow
Adam Baldwin
Not the actor Adam Baldwin. I help developers ship secure code as the CSO at @andyet - I also curate evilpacket.net1,082 followers | Follow
KRAA Security
Providing Data Security On Demand, social media security author, risk management1,080 followers | Follow
Trend Micro
TrendMicro,a global cloud security leader,creates a safe digital world with its content security & threat management solutions for businesses and consumers.1,058 followers | Follow
David Mirza
Founder of open source security startup Subgraph. Co-organizer of security & RE conference REcon. Technology, art, Montréal. Optimist. BG photo: Joe Shlabotnik.1,057 followers | Follow
Aaron Titus
Internet, Privacy & Identity Attorney, VP of Biz Dev for Identity Finder, Privacy Director at Liberty Coalition, GW Law and U of Utah, Proud Husband & 5 kids1,056 followers | Follow
Wagner Elias
Co-Founder and CTO Conviso Application Security; Information Security professional interested in security research.1,051 followers | Follow
Rohit Srivastwa
Founder of ClubHack, Security Evangelist, Technologist, Blogger, Hacker, Biker, Nomad, Farmer and a big time Comic Freak ;)1,034 followers | Follow
eLearnSecurity
We forge infosec professionals with engaging self paced online courses1,025 followers | Follow
Kevin Long
Investigative response/forensics, data recovery, Mac security, and risk analysis at Verizon Cybertrust Security.1,019 followers | Follow
Insider Threats
My life-long passion is Insider Threats and technologies that could potentially put your organization at risk. By day,...Critical Infrastructure Design & Dev.1,017 followers | Follow
Marcus H. Sachs
National security policy guy at Verizon, former director of the SANS Internet Storm Center, PhD ABD at GMU, Ramblin' Reck from GT, Alpha male. My opinions.1,008 followers | Follow
study4cyberwar.com
We want to share research with other people who are interested in this subject, either for private, work related or academic reasons. Feel Free to Contact us.1,000 followers | Follow
Bank Fraud Forum
The goals of The Bank Fraud Forum℠ are to share insights, opinions and serve as an open forum for the fraud fighting community.1,000 followers | Follow
Daniel Hückmann
Security Engineer working at Intel's Security Center of Excellence. The tweets here are mine & do not reflect the views of my employer.999 followers | Follow
David Washburn
Enthusiastically involved w/ launching Cocoon - bringing peace of mind and the internet together at last!972 followers | Follow
Get Cocoon
Our mission is to take Internet security and privacy to a new level. For support please follow @cocoon_support For support please follow @cocoon_support956 followers | Follow
Microdasys
Microdasys completes your Internet security solution through total visibility into web content and data origin.954 followers | Follow
Gemini Security
Gemini Security Solutions provides impartial information security consulting services to the life sciences, financial, and public sectors.935 followers | Follow
byron holland
President and CEO of the Canadian Internet Registration Authority (CIRA)917 followers | Follow
Mert Uygun
894 followers | Follow
John Bumgarner
Chief Technology Officer at the U.S. Cyber Consequences Unit. My tweets do not necessarily reflect the points of view of past, present or future employers.864 followers | Follow
Secure Computing
Australia's leading source of news on information security. Home of the SC Awards presented by AusCERT. Editorial queries to @darrenpauli861 followers | Follow
Catharina Candolin
PhD (2005). Chief of Cyber Defence Section at Finnish Defence Forces. Interested in aviation, endurance training, social media.856 followers | Follow
phenrycissp
Opinions expressed are mine and mine alone Find me on Google+ phenrycissp@gmail.com847 followers | Follow
Mikhail Davidov
Hacker / Senior Security Consultant with Leviathan Security Group844 followers | Follow
Contini Marco
Antifraud and Security Manager . Strategist , Essayist, blogger, lover of books and economist. I live in Livorno, Milan, Rome, Turin and around of the world.841 followers | Follow
James A. Lewis
823 followers | Follow
RSA Fraud Team
810 followers | Follow
nitrosecurity
NitroSecurity provides Network & Information Security solutions: SIEM, Log Management, DB Monitoring & IPS797 followers | Follow
MySecureCyberspace
Carnegie Mellon University's free educational resource to empower you to secure your part of cyberspace.790 followers | Follow
Madison Grace
twittering the latest internet security and computer security threat headlines784 followers | Follow
Digital Defense, Inc
Cloud-based Network & Information Security....Simplified782 followers | Follow
Ponemon Institute
Dedicated to advancing responsible information and privacy management practices in business and government.776 followers | Follow
Upasana Gupta
Upasana Gupta covers IT security careers in government, banking and healthcare.768 followers | Follow
Eric Cowperthwaite
CSO, former soldier, married, kids, dog, cat, chickens, mortgage, bills. I like #scotch, #wine, #cigars, #travel, #baseball, #golf. I speak only for me.752 followers | Follow
M86 Security Labs
750 followers | Follow
₪₪₪ Don Pitts ₪₪₪
Security engineering, wrote software in a past life. Views expressed are solely my own - too lame for anyone but me748 followers | Follow
India Security
India security technology market entry, research, strategy and sales consulting.738 followers | Follow
Daniel Grzelak
http://blogs.forbes.com/parmyolson/2011/06/30/entrepreneur-answers-hackers-with-1-3m-e-mail-vault/735 followers | Follow
Cipher Storm Group
BackTrack 4: Assuring Security by Penetration Testing (ISBN13: 978-1-84951-394-4) / (ISBN: 1849513945)724 followers | Follow
Jack Whitsitt
Critical Infrastructure Protection, Business Security Architecture, Data Visualization, Art, Washington DC683 followers | Follow
IPSI-U of T
To develop new approaches to security that maintain the privacy, freedom and safety of the user and the broader community.671 followers | Follow
David Sancho
Malware buster, always trying to stay ahead in the IT security industry. Senior Malware Researcher with Trend Micro669 followers | Follow
Security Generation
Security geek, Hacker, Mac user and all-round tech fanatic.666 followers | Follow
Giorgio Maone
Hacker, atheist, marxist, dad, mozillian, author of Firefox add-ons like NoScript and FlashGot.655 followers | Follow
Ismael Valenzuela
Passionate about Information Security, Principal Architect at McAfee Foundstone Services and Community SANS Instructor for Forensics & IDS Tracks654 followers | Follow
Dale M. Rapp
Technology Project Manager & IT Security Officer. Husband, and father of 8 and 10 year old daughters. CISSP into wireless security, studying for CWNA/CWSP.654 followers | Follow
GustavoLensMinarelli
CGEIT,CISM,CRISC,ITILExpert,ISO27001LA Prof Services 4 Enterprise changes & Strategic management programs in the field of Governance,Risk & Compliance Mngmt641 followers | Follow
Brivo Systems
Brivo brings the power of cloud computing to Security Management640 followers | Follow
Kurt Baumgartner
security researcher at Kaspersky Lab all tweets/opinions my own636 followers | Follow
Sebastien Gioria
OWASP France Leader Mostly security tweets, but some other sometime See for more information = http://www.linkedin.com/in/gioria636 followers | Follow
Infotex, Inc.
MSSP, IT Audits, Awareness Training, IT Governance. CRISCs, CISSPs, CISAs, CISMs, CPAs.612 followers | Follow
Ptrace Security
I am a Security Researcher interested in Penetration Testing, Exploit Development, Computer Forensics, and Malware Analysis.603 followers | Follow
Kevin Riggins
The ramblings of a risk management professional who also goes my the name of @kriggins.589 followers | Follow
Dragon Research Grp
DRG is a volunteer research organization dedicated to investigating online criminality and providing actionable intelligence for the Internet community583 followers | Follow
SoftwareTestTT
SearchSoftwareQuality.com offers free resources that cover the software development lifecycle from planning to deployment and maintenance.573 followers | Follow
Computer Security
570 followers | Follow
santhosh cheeniyil
Interests: Network security, new technologies, gadgets, entrepreneurship!560 followers | Follow
CSC Cybersecurity
CSC Cybersecurity: We deliver Cyberconfidence™ on a global scale.550 followers | Follow
PCI_Knowledge
Founder of the PCI Knowledge Base, the largest PCI research community & former Gartner analyst549 followers | Follow
RandomStorm
UKs Leading Provider of Vulnerability Management Solutions, PCI and CoCo Compliance and Penetration testing services.546 followers | Follow
RedTeam Security
Security research, vulnerabilities, ethical hacking, @theplugbot supporter532 followers | Follow
iPhone Hacker
iPhone Hacks iPhone Downloads, iPad Hacks, iPod Touch Hacks in one central location532 followers | Follow
SecureState
SecureState provides information security assessments and information protection to help our clients obtain and maintain their desired state of security.522 followers | Follow
Alexander Polyakov
Enterprise Business Application security expert (ERP/SAP). CTO at ERPScan497 followers | Follow
Matteo Cavallini
Manager @ CERT of the Italian Ministry of Economy / VP of CSA-Italy / Blogger. Tweeting about cybersecurity, cloud security and cyberwarfare492 followers | Follow
GabrielGonzalez
I enjoy Embedded Systems development and Security both as work and hobby491 followers | Follow
Angelo Castigliola
Angelo Castigliola is a Cyber Security Expert and Author. For a full bio go to www.castigliola.com487 followers | Follow
InfraGard808
486 followers | Follow
Cisco GGSG
Cisco's Global Government Solutions Group (GGSG) is your trusted advisor in Space, Defense, Homeland and #Cybersecurity. #infosec #IRIS486 followers | Follow
Inside The Core
The Macintosh & Apple Device Forensics Podcast by the MacDudes483 followers | Follow
Click Fraud
Click Fraud News. Click fraud updates from the Experts. Cookies blog471 followers | Follow
Web Security News
Website and application security news and tips clearinghouse to help you keep on top of online threats469 followers | Follow
Parameter Security
Hackers for Hire. Ethical Hackers Protecting You from Unethical Hackers. Penetration testing, vulnerability assessments, IT compliance audits, forensics, etc.466 followers | Follow
lionaneesh
452 followers | Follow
BAE Systems Stratsec
Australia's smartest, strongest and most respected cyber security firm448 followers | Follow
Joachim Strömbergson
Crypto & embedded security expert. Owner and CEO of Secworks.447 followers | Follow
LSE Inf Sys & Innov
LSE Information Systems and Innovation Group teaches and researches the social and organisational effects of Information and Communication Technologies.442 followers | Follow
mailforlen
it security activist and interested in lots of other stuff - follow the lists419 followers | Follow
Aliado Accesso
Aliado means alliance, Accesso means on demand -Risk Management - Web Application Security - Infrastructure Assessment - Technology Solutions411 followers | Follow
Scott Armstrong
IT Security Suite w/ Discovery, Vulnerability, Policy, & Configuration Mgt, & reporting. SCAP Validated, Enterprise Proven. Cyberscope Ready.394 followers | Follow
ZION SECURITY
394 followers | Follow
Dennis Groves
Dennis Groves is a well known thought leader in application security who's work focuses on multidisciplinary approaches to information security risk management.390 followers | Follow
Tom Neaves
Security Consultant. Creative. Definitely a morning person. Lover of web application security and all round Apple fanboy.389 followers | Follow
Think Security
379 followers | Follow
Kenneth_Johnson
Infosec professional, pursuit of MS in info assurance with DFIR focus.. My thoughts are my own and not always PC http://patories.mtamo.com/369 followers | Follow
Feliciano Intini
A very passionate Security and Privacy guy, Technology enthusiast, interested in new Social Media and Cloud, Technology Strategist at Microsoft Italy368 followers | Follow
Raz-Lee Security
The Security Experts for IBM Power i/AS400, specializing in PCI, SOX & HIPAA Compliance. Visit our blog at www.razlee.com/blog358 followers | Follow
Securus Global
Securus Global, IT Security Consulting and Research Company. Working for Australia's and world's best known companies. Call us to see if we can help you.352 followers | Follow
LeviathanSec
Leviathan Security Group is an information security consulting and training company specializing in application security design, assessment, and remediation352 followers | Follow
Ronin Security
Ronin Security is a security consultancy specialising in web application security testing, security management and cloud security341 followers | Follow
Security Exhibition
Australia’s largest and most comprehensive security exhibition. Darling Harbour Convention & Exhibition Centre, July 25 - 27, 2012332 followers | Follow
James D. Murray
Security Research Engineer, CISSP, SSCP, Ham radio, software engineering, digital forensics, cyber warfare, and non-kinetic behavior-altering casual encounters.331 followers | Follow
fifth_sentinel
Enterprise security reality, forensics, visualisation... surviving the insanity326 followers | Follow
MassHackers
MassHackers is a grassroots effort that aims to build a local community of hackers and to provide them with a forum for the free exchange of information.316 followers | Follow
Steven Parker
U.S. Electric sector security dude. Former (and very happy about that) CIP auditor.315 followers | Follow
Creative Breakthroug
Creative Breakthroughs, Inc. is an IT services consultancy and leader in network security, integration, and management.314 followers | Follow
Stijn Vande Casteele
Security Intelligence and Risk Management expert. Proven experience in SIEM and advanced use case development.314 followers | Follow
Aldo Albuquerque
Crazy for Computers, Information Security, Photography and MACs305 followers | Follow
Michael Argast
#InfoSec, #Environment, #Privacy. Opinions are mine, not my employers. Director, TELUS Security Solutions, Western Canada302 followers | Follow
Chris Blask
Founder & CEO of ICS Cybersecurity, Inc, Chair ICS-ISAC and LIGHTS297 followers | Follow
MalwareTeks
279 followers | Follow
Unveillance
Unveillance is the first SaaS botnet intelligence solution. The intelligence is derived passively without the use of any hardware or software.266 followers | Follow
Brent Kerlin
There is no great genius without some touch of madness. - Seneca, Epistles (5 BC - 65 AD)262 followers | Follow
Dmitry Kulshitsky
Applied maths, CISSP, Security architect interested in space technology. Know the difference between IIS,ISS and XSS. Want to see appletrees on Mars.260 followers | Follow
John Gerber
Typical security geek who became hooked at a young age. Worked all sides of IT before finding maximum challenges in security.252 followers | Follow
Jimmy Johansson
Great white sharks cannot stop swimming; if they do, they suffocate and die.251 followers | Follow
Global CyberSecurity
GCSEC is the Global Cyber Security Center based in Rome, focused on International Cooperation and Policies, Research and Education.244 followers | Follow
megapanzer
242 followers | Follow
Roger's InfosecTweet
This is the twitter account associated with Roger's Infosec Blog242 followers | Follow
SecureBastion
We follow information security news and select only the most relevant for you. We post an average of 3 tweets a day238 followers | Follow
Xc0re Security
Penetration Testing , Exploit Research , Security Training , Security News , Exploit Writing.236 followers | Follow
Security BNLX
ICT News: Security | Cloud | CRM | Linux | Microsoft | Google | Android231 followers | Follow
No Panic Computing
Leader in secure, compliant, managed PCs - broadcasting alerts on safe, smart computing & privacy news.224 followers | Follow
Michael Toecker
Electric Power Geek, Hardhat Hacker, Control System Security Engineer, and Consultant at Digital Bond. My opinions are my own. br ˙uʍop ǝpısdn sı ʇxǝʇ sıɥʇ218 followers | Follow
Ignatius Gigis
207 followers | Follow
pen_tester
pen tester, network defender and ham radio operator.... hackers and hams unite!207 followers | Follow
SecurityWire
205 followers | Follow
Richard Alverez
Get the latest tips, solutions and tricks about Spam and how to get rid of it.202 followers | Follow
Ted Paulsen
Discover tips, ideas, and insights into better security through CCTV and improved surveillance.200 followers | Follow
Matt Burgess
http://www.Security-Integrator.com has a free tool to help you assess your IT risks. Helping businesses and homeowners secure their assets.195 followers | Follow
Kyle C. Quest
Cloud/Distributed Computing&Data/Data Mining/Machine Learning/Mobile/Computer Languages/Web/All Things Security194 followers | Follow
Top 5 Antivirus
Top 5 Best Paid Antivirus - Free Trial Offers. Click on link above to learn more about the best performance antivirus for PC computers.193 followers | Follow
ISecAdviser
Information Security Consultant. This account is used to provide news, references and advices regarding Information Security.189 followers | Follow
ModSecurity Handbook
ModSecurity Handbook is the definitive guide to the popular open source web application firewall.187 followers | Follow
Joshua Philipp
Technology editor and journalist for The Epoch Times. Founder of TechZwn.com. I cover technology, cybersecurity, and all things geeky. All my tweets are my own.187 followers | Follow
SRC Secure Solutions
Data breaches and vulnerabilities are increasing risks. Measures must be taken. We are specialists in software for security, compliance and systems management.183 followers | Follow
EnigmaGroup Org
EnigmaGroup brings you a legal and safe security resource where users can test their pentesting skills on various challenges on its site.181 followers | Follow
National IA Forum
NIAF is an independent committee of leading UK Public and Private Sector Information Assurance (IA) experts. Tweets cover Group Admin and IA/ICT Hot Topics.178 followers | Follow
DIGIOP, Inc.
177 followers | Follow
Aaron Jacklin
UCsci is a twitter bot from Understanding Crime (@UnderstandCrime) that RTs tweets that mention #criminology and #forensics.173 followers | Follow
Cyberwar-books
For your daily dose of cyberwar related information. With this account i will be keeping an eye on Cyberwar related books.149 followers | Follow
Santosh M Satam
Founder & CEO SecurBay, Interests: Cloud and Mobile Security. Long Distance Runner, Avid Reader, History Buff. Editor of SecurityCrunch.in146 followers | Follow
Geoff Carstairs
Pentesting and Malware. Opinions expressed here are my own etc...142 followers | Follow
Rajiv Mathew
Tweeting the latest news, views, blogs and feed on security from around the interwebs.140 followers | Follow
Secure Today.net
In the ever changing world of Information Age, how do you secure your assets today to prepare for the future? Visit www.securetoday.net and read more!134 followers | Follow
Pure Hacking Pty ltd
129 followers | Follow
David Durvaux
CERT.be security analyst and freelance consultant. Security is a passion.129 followers | Follow
Wojciech Smol
Absolwent informatyki, administrator sieci i systemów komputerowych, zainteresowany przede wszystkim bezpieczeństwem informacji. Publikuje w magazynie HAKIN9.109 followers | Follow
ViciousData Recovery
Data Recovery under many brands, computer forensics, Incident response.105 followers | Follow
Rikard Bodforss
Information Security professional, tweeting my thoughts to those who care. Every tweet is my own opinion and not my employer's! Caveat emptor!79 followers | Follow
Smokeys Security
Smokey's Security Forums is the #1 Online Security Database, Security Knowledge & News Center77 followers | Follow
shadow crash
69 followers | Follow
Cyber Patriot
Cyber challenges require cooperative defense solutions. Building Cyber Defense connections and capability. #cyberdefense61 followers | Follow
David Thomason
58 followers | Follow
Maximilian Burkhardt
Aspiring security researcher and UC Berkeley EECS student.57 followers | Follow
Swa Frantzen
49 followers | Follow
Laat je niet hacken
De Consumentenbond informeert je met de campagne ‘Laat je niet hacken’ over de risico’s van internet; met praktische informatie en hulpmiddelen. Beheerder:Peter45 followers | Follow
Manpreet Singh
27 followers | Follow
Web Security
24 followers | Follow
CyberSecurityCentral
Cyber Security Central is “Your Single Source for Everything Cyber Security”.19 followers | Follow
