Security

TechCrunch

Breaking Technology News And Opinions From TechCrunch
2,222,872 followers |

AVGFree

The Official Twitter account for AVG Free Anti Virus. Ben and @Jas are updating this feed - Monday to Friday, come and say hello!
85,548 followers |

Homeland Security

U.S. Department of Homeland Security (Official).
80,363 followers |

Kaspersky Lab

Leading developer of Internet threat management solutions that protect against all forms of malicious software.
38,386 followers |

Mikko Hypponen

CRO at F-Secure. Malware Adventurer. World Champion in Xevious.
29,509 followers |

Steven De Gracia

Turn $15 into $3800 a Month!!! Just ask me how!!! :O)
26,888 followers |

HD Moore

CSO of Rapid7 and Chief Architect of Metasploit
22,186 followers |

Black Hat Briefings

The World's Premier Technical Security Conference
22,183 followers |

Nmap Project

A free and open source tool for network discovery, administration, and security auditing. Our tweetmaster is Fyodor. We're also on Facebook: http://nmap.org/fb
17,787 followers |

Security Tube

Watch ... Learn ... Contribute
17,781 followers |

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 |

Threatpost

Threatpost is the first stop for fast-breaking security news, conversations and analysis from around the world.
17,154 followers |

Thom VanHorn

VP of Marketing for Application Security, Inc., The Leader in Database Security, Risk, & Compliance - - Owner of Artists+Authors Rare Books, Fine Art
16,423 followers |

F-Secure

We're here to help you protect the irreplaceable on your PC, Mac, mobile and in the cloud. Test out our services for free. Need help? @FSecureCares
15,700 followers |

Roger Halbheer

Worldwide Chief Security Advisor, Microsoft Corporation, CISSP, Master of Computer Science
15,650 followers |

HIPAA School

HIPAA training accredited by the American Medical Association and other national healthcare associations.
15,441 followers |

Norton

News, tips and product info to keep you safe online & to help protect your Stuff. Need help? Please follow @NortonSupport or visit community.norton.com.
14,471 followers |

cyberwar

Richard Stiennon,security industry analyst reporting on cyber defence and author of Surviving Cyberwar . Also follow me at @stiennon
14,233 followers |

J. Ryan Winter

Canadian private investigator, entrepreneur, blackberry addict, single father of 3 and believer in karma with a love of soccer, flying, technology, Lego #YQR
13,687 followers |

Jay Neff

http://friendfeed.com/jayneff - Tech entrepreneur passionate about security, telecom, social media, blogging, learning, ♥ music, fishing, & creative people!
13,563 followers |

Infosecurity

Infosecurity is the only magazine dedicated to the strategy and technique of information security, delivering critical business and technical information for IT
13,466 followers |

SophosLabs

The global network of highly skilled researchers and analysts, protecting businesses from known and emerging malware - viruses, rootkits and spyware.
12,434 followers |

Richard Bejtlich

Chief Security Officer, MANDIANT. TaoSecurity blogger. Author. Black Hat instructor.
12,290 followers |

DarkReading

News and information on IT security, helping information security pros manage the balance between data protection and user access.
12,216 followers |

Moxie Marlinspike

11,711 followers |

Jeremiah Grossman

Founder & CTO of WhiteHat Security, Web security enthusiast, hacker, 6-continent public speaker, TED alumni, Maui resident, Brazilian Jiu-Jitsu Black Belt.
11,386 followers |

Identity Guard

The Official Twitter profile of Identity Guard, your total protection solution from identity theft. Tips to keep you safe online and offline!
11,074 followers |

Dino A. Dai Zovi

Co-Founder and CTO at Trail of Bits, Inc.
10,769 followers |

The Dark Tangent

10,600 followers |

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 universe
10,434 followers |

helpnetsecurity

Mirko Zorz, Editor in Chief of Help Net Security and (IN)SECURE Magazine.
10,041 followers |

XSS Hacker

ZXllIFhTUyB5b3U=
9,550 followers |

[Christofer] Hoff

Fitness Culturist. Paleo-like Eater. Shiraz & Bourbon Fiend. Brazilian Jiu Jitsu Fanatic. Technosopher. Cloud & Virt (Security) Dude. I work @ Juniper Networks
9,522 followers |

Rob Fuller

Certified Checkbox Unchecker
9,218 followers |

US-Cert

US-CERT coordinates defense against and responses to cyber attacks across the nation. Managed by @sheffus.
8,694 followers |

PC Tools

PC Tools, industry leading protection from online threats
8,601 followers |

Chris Gates

Security Guy. You guys are really f**king up my zen thing. blog: carnal0wnage.attackresearch.com
8,440 followers |

Security Response

Views and updates from the Symantec Security Response team on all things security
8,418 followers |

securitypro2009

Information Security Pro, Compliance visionary, Entrepreneur, World Traveler, and Business Management Techophile.
8,392 followers |

Chris Wysopal

Application security, former L0pht researcher, L0phtCrack and Netcat for Windows developer, Veracode CTO & co-founder
8,131 followers |

Security4all

Security Geek, Japan & Sushi lover
7,978 followers |

Eric Cole

Dr. Cole is a cyber security professional & tri-athlete. He is a senior fellow with SANS and cyber security consultant.
7,448 followers |

Richi Jennings

Editor, independent analyst; ASBPE-and-Neal-award-winning writer. #technology #security #writer #press #mobile #spam #editor
7,374 followers |

BlackBox Innovations

John Tate, President- Interested in figuring out how to make our digital lives (both on and off line) both easier and secure. Tech, Gadgets, Computers
7,366 followers |

zecurion

Data Protection Company, Treats Internal Threats: Encrypt. Block. Control.
7,282 followers |

Rapid7

Rapid7 is the leading provider of unified vulnerability management and penetration testing solutions, including Nexpose, Metasploit and w3af.
7,257 followers |

Ken Westin

Founder/inventor of @gadgettrak theft recovery and data protection software for mobile devices, security groupie and mobile privacy advocate @mobileprivacy
7,243 followers |

Compliance Geek

Since more than 10 years i am implementing different compliance regimes, normally as integrated management system (IMS)
7,202 followers |

Alexander Sotirov

Co-founder and Chief Scientist at Trail of Bits, Inc. Occasional rockstar.
7,013 followers |

Radware

Radware provides business-smart networking for data centers with advanced solutions for application delivery, security and virtualization.
6,936 followers |

Dejan Kosutic

Expert for information security management (ISO 27001 standard) and business continuity management (BS 25999-2 standard)
6,709 followers |

Lee

Blogging about internet security whilst supporting Liverpool Football Club.
6,615 followers |

daveaitel

Dave Aitel (CEO Immunity, Inc.)
6,598 followers |

Damien Stevens

Cloud Computing, BCP, DR, and Virtualization Startup. Christian and Entrepreneur.
6,431 followers |

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 |

Stéphane ROBERT

Web developpment on linux
6,178 followers |

Didier Stevens

5-to-9 security researcher and Microsoft MVP. Mostly IT security. And programming. And (hardware) hacking. And PDF. Avatar: http://bit.ly/bP0Gy0
6,096 followers |

Darknet.org.uk

The Darkside. Ethical Hacking, Penetration Testing & Computer Security.
6,020 followers |

Christopher Burgess

Author/Speaker.Security.Safety.BulIying.SocialMedia.IntellectualPropertyProtection.Intelligence. Protect families especially the elderly/young; Enjoying Life
5,941 followers |

AlertBoot

AlertBoot full disk encryption offers the most comprehensive and most secure hard disk encryption and data security software today.
5,894 followers |

Dr. Anton Chuvakin

Information security: SIEM, log management, vulnerability management, PCI DSS, GRC... now at Gartner, Inc!
5,522 followers |

secure the computer

securethecomputer.com is a free computer help blog.
5,485 followers |

Christophe Veltsos

InfoSec, Risk, and Privacy Strategist. More at www.linkedin.com/in/chrisveltsos
5,418 followers |

Security Tools Watch

Abducted by Aliens and ordered to maintain http://www.toolswatch.org and to Design COREvidence
5,415 followers |

ChrisJohnRiley ♻

--== I'm just this guy, you know! ==-- :: Penetration Tester :: Blogger (@catch22insec) :: Podcaster (@eurotrashsec)
5,351 followers |

Sam Johnston

Random rants about tech stuff (Cloud Computing, Security, Open Source, etc.). Protip: Don't assume these are anyone's thoughts but my own.
5,274 followers |

alexander knorr

infosec, security, privacy, linux, opensource, networks, tcp/ip, programming, scripting, apple, windows,
5,018 followers |

Webroot

The fastest, lightest, most-effective security -- Currently on Twitter-duty: Lisa and Cat
4,968 followers |

Jason Haddix

Director of Penetration Testing @ HP && Father. My tweets and website are my own views and not that of my employer.
4,888 followers |

Roberto Martinez

Security Professional | Malware Researcher at Global Research and Analysis Team - Kaspersky Lab | Latam - Mexico
4,840 followers |

Dan Philpott

Federal cybersecurity, risk management, cloud security and information assurance practitioner. Focused on policy and practice. Editor of FISMApedia.org.
4,808 followers |

Chester W - Sophos

Sophos Security expert Chet Wisniewski shares advice and insights into online threats
4,777 followers |

Angelina Ward

Director, Social Media & Content for @LexisNexisRisk. Work: Data, Investigation, Fraud, InfoSec, Publishing. Interests: Tech, Food, Wine, Travel. My opinions.
4,688 followers |

CSOonline

Security and Risk
4,678 followers |

Rebecca Herold

Infosec, privacy, & laws compliance, professor, fun momzy, author. I love: family, friends, science, art, math, music, nature, cicadas, palindromes, running
4,618 followers |

dragosr

4,348 followers |

alphadoggs

Bob Brown, BU grad and 1-time yo-yo champ now editing Network World, tracking Cisco, IBM, Microsoft, CIOs, IT pros, network research, VCs, startups
4,306 followers |

Andrew Hay

Devastatingly handsome Chief Evangelist @CloudPassage and [soon to be] transplanted Canadian. Author, blogger, BBQ junkie and former industry analyst.
4,151 followers |

Cyber Security News

All about the latest IT security trends, network security, website protection, hackers and security breaches. Better info helps you protect your organization
4,102 followers |

Infosec Island

Information Security Community. Join the conversation
4,040 followers |

Bev Robb

Portal :Twitter Forensics list. It consultant by stealth (Internet security, social media & blogging). Small biz/Start-ups -not ready for a PR Firm? Let's talk!
4,010 followers |

BrianHonan

InfoSec Consultant, Blogger, Author, Founder and Head of Ireland's CSIRT @irisscert
4,003 followers |

Sourcefire VRT

Sourcefire Vulnerability Research Team
3,922 followers |

Jeff Hexter

Computer Consultant & Daddy to a couple of little girls. I'm a nerd who loves to teach others all the things I discover about computers and the 'net.
3,916 followers |

Jon Oberheide

Co-Founder at Duo Security, PhD at University of Michigan
3,896 followers |

EDU Info Security

Information Security news, risks and advice, brought to you by Steve Werby.
3,849 followers |

CyberSecureInstitute

DC-based cyber security advocacy and analysis group. Providing the latest news and insightful commentary from around the web.
3,700 followers |

Eric Chabrow

Eric Chabrow is executive editor of GovInfoSecurity.com
3,646 followers |

MalwareNews

MalwareNews is sponsored by SkyRecon, a provider of IT security for endpoints, applications, data and users. Sean Martin, CISSP
3,562 followers |

rachel oconnell

Futurist inspired by technology and policy innovation
3,539 followers |

BitDefenderLabs

IT Security news, info, and tons of other malware and antivirus goodies.
3,490 followers |

Ron Gula

CEO of Tenable Network Security; makers of the Nessus Vuln Scanner and great enterprise security tools for log analysis, network monitoring and vuln management
3,484 followers |

Ed Aractingi

IT professional in HigherEd, technology enthusiast, security, virtualization cloud computing, passionate about social media linux & gadgets CISSP MCSE
3,452 followers |

ophelia

Network | Infrastructure | Security engineering | Dainty little pwner from hell
3,440 followers |

EC-COUNCIL

The Leading IT Security Certification Body. Creator of world renowned Certified Ethical Hacker program, C|EH & other certifications. http://www.eccouncil.org
3,436 followers |

ID Experts

Leader in comprehensive data breach solutions that deliver the most positive outcomes before, during and after a data breach. Also follow our president @RickKam
3,393 followers |

BreakingPoint

BreakingPoint next-generation performance and security testing products harden the resiliency of vulnerable converged networks and train cyber warriors.
3,362 followers |

Panda Cloud AV

Do you need a Free Antivirus? Here you have it! Panda Cloud: Light and Free! You can follow our main account @Panda_Security (ENG) or @PandaComunica (SPA)
3,312 followers |

Steven Bearak

CEO of Identity Force. National expert on identity theft prevention, data breach response and business compliance.
3,234 followers |

Andre M. DiMino

I follow botnets/malware/e-crime threats. $Dayjob==Digital forensics. Researcher with DeepEnd Research http://www.linkedin.com/in/adimino
3,043 followers |

Barry Gilbert

Web/Android Dev, Gym Rat, Musician, Gay Guy, Baker, Unbuntu Geek, Trekkie, Not Your Avg Anything ;)
2,966 followers |

strandjs

2,922 followers |

Martin Bos

Profesional Box Popper
2,854 followers |

Lance Miller

infosec, infosec, infosec
2,837 followers |

Timeless Prototype

Security Analyst (code, .NET, net and 'Net). Multilingual programmer. Following != endorsement. RT's are observations, opinion not implied unless stated.
2,773 followers |

AccessData

See new videos, resources & industry news from AccessData, a leading provider of E-Discovery, Forensics & Cyber Security software.
2,758 followers |

Ukn0 M3

IT Governance, Security, and Risk Expert.
2,745 followers |

Rik Ferguson

Director Security Research @ Trend Micro - I tweet as myself, expect some non security stuff too.
2,684 followers |

Hakin9

Hakin9 is the biggest IT security magazine in the world, published for 10 years. We have a database of 100 000 IT security specialist.
2,661 followers |

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 |

anthonymfreed

Editor, Researcher, Analyst and Freelance Writer - http://www.linkedin.com/in/anthonymfreed
2,653 followers |

Matt Putvinski

Director of Technology Audit and Security, CISSP, CISA, CPA - Helping clients protect data and utilize technology efficiently.
2,612 followers |

Theresa Payton

Passionate About Security and Educating Others On How to be More Secure
2,608 followers |

Web Security

All about web security and daily software vulnerability reports
2,608 followers |

Tom Field

Editorial Director of Information Security Media Group -- the source for business/security insights.
2,599 followers |

Carole Wozny

Bringing you the latest security news, tips and tools.
2,574 followers |

Nicolas Brulez

Senior Virus Researcher @Kaspersky lab / Co-Author of the Armadillo protection system. Reverse Engineering Rockstar #CannibalCorpse fan. Tweets are my own
2,573 followers |

Security Justice

Monthly security podcast from Cleveland, Ohio. irc.freenode.net #securityjustice
2,563 followers |

Anas BENMOUSSA

Interested in Leadership, Information Technology, Marketing, Economics & Finance, Management & Strategy, M&A, Politics & International Relations ... ☮
2,475 followers |

Philip Hall

SME in mobility, cloud, end-user technology & security. Expertise in security as a business enabler, BYO-D, MDM, NAC, & related adoption strategies.
2,447 followers |

Syngress Publishing

Publisher of IT Security, Digital Forensics, Hacking, Pen Testing, and related subjects
2,410 followers |

Secure Bytes

Secure Bytes is the leading information security software solution provider which develops security software that focus on automated IT security.
2,350 followers |

ryanlrussell

Computer security, writing and FireEye. But mostly I tweet about my kids.
2,301 followers |

MSK Security

MSK Security - Network and Internet Security. Saas Security, Cloud Security, Non-Linear Authentication. Business, tech, VC, money, cars, SoCal business
2,270 followers |

SecuObs

XPO - SecuObs l'observatoire de la sécurité Internet - Site d'informations professionnelles sur la sécurité informatique
2,240 followers |

RayDavidson

Mostly ENFJ, sometimes INFP. Infosec geek. I teach stuff and encourage people to play nice together. It doesn't always work. Tweets are my own.
2,191 followers |

Apogee Internet

Welcome to Apogee Internet UK. Satellite Broadband from Rustyice Solutions. To order call us free on 0800 012 1090.
2,150 followers |

David Barroso

Mr. Wolfe. I'm Winston Wolfe. I solve problems
2,134 followers |

eSecurityPlanet

eSecurity Planet is the IT professional's top choice for Internet security news and analysis, technical tutorials, product reviews, and buying guides.
2,117 followers |

GarWarner

UAB Computer Forensics, Cybercrime investigations, Spam & Phishing Research,
2,101 followers |

craigbalding

'I'd rather be paranoid and wrong than ignorant, happy, and right' (SN) Director, Red Team @ F500 My views here, not my employer
2,058 followers |

Javvad Malik

The unholy alliance between information security, cynicism, videos and comedy personified in a short fat person. www.youtube.com/infoseccynic
2,044 followers |

Webroot Support

Need help w/ your Webroot product? Tweet us your question & we will get back to you shortly! Need more help? Search our support knowledge base @ the link below.
2,042 followers |

Mourad Ben Lakhoua

Information Security Professional Focused on Cybersecurity, Penetration Testing, Risk Management and more. Blogger and SecTechno Founder.
2,024 followers |

theprez98 (总统)

USN Veteran. Security Consultant. Owner and Founder, Leverage Consulting & Associates.
2,016 followers |

Privacy Security

Security & Data Privacy Professional
2,012 followers |

PCI DSS Wiki

Information on PCI DSS for Merchants and Services Providers. Contributions from QSA's and PAQSA's.
2,009 followers |

Nick Owen

Nick Owen, CEO of WiKID Systems, Opensource Two-factor Authentication. These tweets are my own, just like my company (well, 50%). BsidesAtlanta co-organizer.
1,915 followers |

Bob Chaput, CISSP

http://www.linkedin.com/in/bobchaput • HIPAA HITECH Compliance Expert | Executive | Educator | Speaker | Entrepreneur
1,857 followers |

Thomas ZuckerScharff

Thomas Zucker-Scharff posts on Comp Security,Anti-Malware, technophile: all opinions r my own & don't reflect the opinions of Albert Einstein Coll of Med
1,800 followers |

Steven James

IT Administrator/PCB Designer -- InfoSec geek/Arch linux user/All around Nerd. I enjoy Skateboarding, Music production and Tech related stuff. I like pie!
1,770 followers |

keydet89

DFIR Windows nerd, beer snob, mud/O-course runner, Tough Mudder alum
1,760 followers |

Daniel Miessler

reading | writing | laughing | sharing | secularism | humanism | philosophy | politics | webappsec | programming | design | coffee | danielmiessler.com ::
1,751 followers |

cedricpernet

Incident Handler/Cybercrime & Forensic Investigator. Also, addicted to guitar playing \m/ :-)
1,732 followers |

FORTRUST

Principal Partner - Fortrust. Tweets on Drupal, Info Sec, Social Media, Web Dev, Health & Fitness, Spirituality, Philosophy, Adventure, Cars & Living ;-)
1,715 followers |

Masafumi Negishi

Security Researcher, SANS Instructor in Japan, 子供たちが安心して使える安全なネット社会を実現したいですね。 こちらに簡単なプロフィールあります。 http://goo.gl/KYU9
1,707 followers |

Henk van Roest

Working for Microsoft as EMEA Security Program Manager. Interests in Software Security, fighting malware and phishing.
1,706 followers |

Jonathan Abolins

Info security, OSINT, and languages geek w/ biology & physics background researching the networked world.
1,638 followers |

Risa Ozaki

情報セキュリティのこと、サイエンスのこと、アートのこと、好きなことなど日々の徒然を自由にツイートしてます。
1,603 followers |

Privacy Solutions

Privacy and Information Security Experts Consulting on Privacy and Social Media, Privacy by Design, and Data Security for Real Estate and Other Industries.
1,598 followers |

Chris Duque

Jest Trying to Reduce the Risks of Victimization on the Internet through Education & Awareness.
1,589 followers |

Stephen Fewer

Independent Security Consultant
1,580 followers |

Pentester Scripting

Scripting for Penetration Testing
1,559 followers |

PC support1

1,556 followers |

PrivacyHarbor.com

Private and Secure Email for helps everyone, Take Back Their Privacy with PrivacyHarbor.com
1,531 followers |

BiometricID

Scan Your Finger Once Protect Your Identity Forever BiometricID Protects Your I.D.
1,526 followers |

F-Secure UK

Here to help you stay safe online. Try our Internet Security and Online Backup for free.
1,491 followers |

کیوان کمیلی پور

ISMS Lead Auditor, Malware Researcher
1,474 followers |

Online Backups

Covering the online (off-site) backup industry
1,428 followers |

TechWebSecurity

This is the official source for technology security news from TechWeb sites.
1,423 followers |

InBoxRevenge Forum

We have a forum about exposing spammers and other types of cybercrime. Learn how you can help report illegal spammers and more.
1,409 followers |

IpswitchFileTransfer

Ipswitch File Transfer builds software to securely move your valuable data.
1,409 followers |

Jeff Murri

Into infosec (all of it). Aspire to eradicate duhkha.
1,407 followers |

Michael Murr

Forensics and Reverse Engineering... eat, live, breathe
1,381 followers |

Andreas Schuster

Computer forensic geek
1,362 followers |

Marc-Andre Leger

Conservateur du iMusée, Enseignant et chercheur - Teacher and researcher in IT Risk Management, WLAN, MIS.
1,358 followers |

HTD

u r a nerd.
1,289 followers |

J-Michael Roberts

Digital forensic examiner / incident responder. Hacker. Slayer of spam. Barbeque pitmaster. Cake engineer. Expert at nothing. Opinions are mine. May be joking.
1,254 followers |

Bryan Tobey

Infosec enthusiast/student, father, former soldier &  book pro believer. _fmm = freemymind, learn something new everyday. Tweets r my own not my employers.
1,226 followers |

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 |

Maximiliano Soler

Security Researcher & Enthusiast. FireCAT | OWASP Mantra | #ToolsWatch | #EKOParty Fan
1,202 followers |

David Navetta

A lawyer focusing on information security, data privacy and technology law.
1,201 followers |

Venafi

Official Twitter account of Venafi, the market leader of enterprise key and digital certificate management (EKCM) solutions.
1,195 followers |

rebelk0de

#infosec, #greencomputing, #foss, #mufc.
1,186 followers |

corq

愚かなアコライト Network/SysAdmin/Security nrrd. SWL DXer. Linux + Android Shill. Taoist acolyte. Destructorette. THIS FEED HAS WEAK SIGNAL-TO-NOISE RATIO.
1,157 followers |

Diane Barry

California Attorney, ESI Discovery Maven. Matthew Bender Author, HOG. Hockey Fan. (LET'S GO SHARKS!)
1,154 followers |

denvercyber

Information Technology services with a focus on cyber security
1,139 followers |

Francois Ropert

I swag in hex and apply my steez on computer security for the Fortinet TAC EMEA.
1,111 followers |

Unisys UK and Europe

Unisys UK and Europe communications
1,095 followers |

Anue Systems

Anue Systems (anuesystems.com) Net Tool OptimizerTM provides complete network visibility. Anue’s Test and Measurement division. Info: http://anuesystems.com/
1,090 followers |

Privacy Pete

Tweeting about Privacy, Security, Social Engineering, Anonymity, Government, Technology, & Social Media
1,063 followers |

vaklove

The areas of interest can be found at my gleanr.com Publishing done by prosyna.com
1,038 followers |

ITProMasterMind

PROVEN: Successful IT Professional Career is all about Relations building than Tech Stuff - Took me 26 years to get it :-)
1,027 followers |

Stuart Dyckhoff

Welsh based, rugby loving, dad to 3, Tang Soo Do student, amateur photographer (images on G+) and a geek / nerd to many.
1,008 followers |

TalkToanIT

Day to Day ISSO for the MIL, MSIA Grad Love Everything about h4x0r & cyb3r
995 followers |

John Martin

Information Security Specialist - IBM NZ
963 followers |

Vikram Phatak

CEO @ NSS Labs
961 followers |

Andrew G. Allen

Information Security Evangelist, Technologist, and Internet Junkie.... views expressed are my own :)
931 followers |

Samantha Elwin

Streaming the Latest Security Headlines and Vulnerabilities
895 followers |

Ken Johnson

AppSec guy for an awesomesauce startup, devs the Web Exploitation Framework (@wXframework) at night & a member of the Attack Research blog.
889 followers |

Thomas Wilhelm

Hacker, author, dad
868 followers |

Commtouch

Proven Internet security technology for security companies and service providers founded on a unique cloud-based approach.
867 followers |

phenrycissp

Opinions expressed are mine and mine alone Find me on Google+ phenrycissp@gmail.com
847 followers |

Patricia Bramhall

Providing expertise in IT Service Management and Business Intelligence. We take the mystery out of IT and help your company make smart business decisions.
827 followers |

Mike Rigsby

Network Admin for a circuit board mfr in PDX area, Windows Admin, PC Troubleshooter, Android fan, Smartass. Opinions are my own, not my employer
807 followers |

cyberbofh

BOFH,cyberspace,sysadmin,technology,gtd,news,holland,cats,freedom of speech,politics,military,fast food,ubuntu,meezers,virtualization,android
807 followers |

Mourad ben lakhoua

Network Security, Information Security , CyberSecurity ,Hacking.
797 followers |

Jamie Butler

789 followers |

SteveAdegbite

787 followers |

Madison Grace

twittering the latest internet security and computer security threat headlines
784 followers |

PCIS

Vancouver IT consulting firm since 1995 - Intranets, web portals, messaging, communications and custom web applications. Blog at http://www.pcis.com/vaclav
750 followers |

Roer.com - the Blog!

Roer.com is a Information Security blog in Europe.
737 followers |

Tracy Kitten

CUInfosecurity.com is a leading website dedicated to security news and fraud trends affecting the credit union industry.
726 followers |

Steve Goldsby

20 Year Information Security expert, visionary entrepreneur, CEO of http://www.icsinc.com
725 followers |

Sebastien Raveau

I play chess when I'm drunk
720 followers |

Lightwave GRC

SecureAware: an IT_GRC (Governance, Risk and Compliance) solution for mid-size orgs with compliance issues like ISO, SOX, HIPAA, GLBA, and PCI DSS. Manage all!
718 followers |

Hart Rossman

Home: Family, Travel, Outdoors, Climb, Bike, Run, Camp, Circus Skills. Work: CTO Cyber Security @ SAIC, Tech & Innovation
695 followers |

Eric Seguinard 

prévenir et lutter contre toute intrusion malveillante des systèmes informatiques securi-toile.com vous propose d'auditer vos sites et/ou serveurs web
685 followers |

Barry Irwin

Academic,Infosec Person,BSDphile & herder of graduate cats^W students
654 followers |

Luka Gerzic

Proud father, IT Architect, adrenaline, speed & rally addict ツ
646 followers |

Securityblog

636 followers |

ak1010

Hacker by Nature..Researcher by Passion
617 followers |

Enclave Security

Cybersecurity consultants, auditors, and SANS courseware authors.
613 followers |

IRISS

IRISS-CERT is Ireland's first National CSIRT (Computer Security Incident Response Team) providing services to users within Ireland
594 followers |

Martin Bernet

Systems Engineer/Integrator/Architect, Agile/CI, INCOSE, CISSP, IEEE, VMI, DC United, USA Soccer
593 followers |

Kevin Riggins

The ramblings of a risk management professional who also goes my the name of @kriggins.
589 followers |

ISSA Raleigh, NC

Raleigh, NC Chapter of ISSA (Information Systems Security Association). Visit our page for info on our monthly meetings, special events, CISSP study and more!
580 followers |

Félix Aimé

Pentester, Blablateur à mi-temps et cofondateur d' http://www.intelligence-strategique.eu
576 followers |

itsecuritynews

Provider of the latest news on IT security and data breaches.
573 followers |

Richard Zhao

PhD, CISSP, Chief Strategy Officer, NSFocus,Cloud, Security, Telecom, P2P, China
573 followers |

l1quid-

part network consultant, part security guy, part developer, 100% jacked in.
567 followers |

Fabio Cerullo

543 followers |

Security Basics

I'm tweeting about basic computer / network / internet security, tips, news, advisories, video's and more.
514 followers |

Melissa Fulkerson

Channel Manager for Elsevier Science & Technology; passionate about retail & the P to E migration. New mom. I like stuff & things. My own thoughts & opinions.
511 followers |

Conquest Security

An information security consulting firm providing products & services that emphasize systems management, operational procedures, controls, testing & education.
509 followers |

William O'Connell

Managed Service Provider Expert. I specialize in off-site data storage,online back up recovery & telecommunications solutions.
488 followers |

Trevor Hawthorn

Security Consultant, Entreprenaur, Tinkerer, Insecurity Enthusiast, Dad, Town Heretic
477 followers |

MB Security

Security Tweets
474 followers |

redcondor

Award-winning email security experts
469 followers |

Erik J. Borda C.

--||Offensive Security Researcher||-- Struggling with autism spectrum. I don't use Facebook
468 followers |

Carolina Adv Digital

CAD, Inc. is a woman-owned, veteran-owned engineering company specializing in IT infrastructure, security & management. Contact us at 800-435-2212.
462 followers |

sphackr

√ Verified avatar @ sec .. Def$
461 followers |

Js Opdebeeck

'InfoSec' Twitter account by @js_opdebeeck - This is a personal Twitter feed. The opinions expressed here represent my own and not those of my employer.
455 followers |

Sylvain C.

IT Security Engineer (aka Code, Caffeine and Rock'n'Roll). Secure Coding Zealot Apprentice.
431 followers |

Brian Birkinbine

InfoSec, always learning something new #include disclaimer.h /* tweets are my own */
424 followers |

DeadBoltSecure.ca

Protecting your privacy and helping to prevent identity theft.
411 followers |

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 |

Matthew B.

By trade I am an Information Security Researcher. By choice I am Musician & Self-Reliance Enthusiast
388 followers |

Godert Jan van Manen

383 followers |

Dav3

Now with 1% less snark! A guy once from the midwest, eclectic, sometimes quirky, often geeky. Security, political observer, infosec, random thoughts.
381 followers |

Tom Mahoney

Providing tools, tips, & tricks to prevent credit card fraud on your eCommerce site.
379 followers |

Josh Grunzweig

Security researcher, miscreant, fan of zombie attacks on stupid people.
365 followers |

xyn.ack

Security, Privacy and Linux
363 followers |

Secure360 Conference

The premier educational conference for the information risk management and security industry. Supported by the Upper Midwest Security Alliance. May 9-12, 2012
358 followers |

Marco Koelmans

Information Security Consultant, CISSP, CISA, CISM, Formula 1 lover and amateur photographer
354 followers |

Craig Herberg

Craig Herberg, expert in technology frustration remediation®
352 followers |

Luiz Cabuloso

Technology, Information Security, Games, Heavy Metal, Forensics, Fun
348 followers |

Gareth Niblett

Security, Privacy & Compliance Consultant; Director of British Business Federation Authority (BBFA); Chair of BCS Information Security Specialist Group (ISSG)
305 followers |

Jeremy Richard

IT security consultant
302 followers |

Chris Blask

Founder & CEO of ICS Cybersecurity, Inc, Chair ICS-ISAC and LIGHTS
297 followers |

krvw

Computer software security geek and tech author.
289 followers |

LGScout

Cyber Situational Awareness, Internet Intelligence, Network Visualization, Data Fusion, Cyber Intelligence, Network Situational Awareness, Network Analysis
268 followers |

Louis hur

Recently, I'm getting to panic.
261 followers |

Kenny Vaneetvelde

Just a guy living in belgium. I like reading and learning more about web development, android development and security
257 followers |

Alix Desforges

Doctorante en géopolitique, je travaille sur les rivalités géopolitiques et les nouvelles formes de conflits dans le cyberespace.
234 followers |

DiskShred

DiskShred specialises in secure on-site hard drive shredding & destruction of tapes & other electronic storage media. CESG /CCTM accredited.
231 followers |

Jacob Red

K12 Network Admin, linux geek,
229 followers |

Ron Lepofsky

President, ERE Information Security Auditors
229 followers |

Raj Rajamani

227 followers |

Pasquale Stirparo

Digital Forensics & IT Security researcher
208 followers |

Ed E

Web Admin Interests: Web Stds, SEO, Usability, Collaboration, Soc. Networking, Open Source, Education, Gov 2.0, Globalization, Entrepreneurship, Security
186 followers |

Tim Hergert

Part philosopher, part ninja, (a ninjalosopher?) - all IT security guy
180 followers |

RichM

*nix; C; packet slinger; pirate; time traveler; photography; nature; hiking; general hackery and netfoolery
180 followers |

Randy Kangas

IT Consultant / Technician & Security Enthusiast: I believe in continuing education, therefor, I am in a constant state of learning... #infosec #Networks
177 followers |

Nathan Sweaney

160 followers |

Dror-John Roecher

Security-Consulting, Family, Photography, Music, Politics, Cookin - can't fit more into 24 :-(
155 followers |

Bhavuk Arora

Info Sec Junkie
145 followers |

Robert Rounsavall

137 followers |

SafeCentral

We protect you online from cybercrime keeping you safe from identity theft.
134 followers |

mario

http://ca.linkedin.com/in/0utlaw http://superconfigure.com/
124 followers |

bitmasker

Engineer,Hacker,Proud Father, just old enough to remember how to root VAXen at 1200 baud, avid collector of knowledge and technique
119 followers |

David Nesom

Information Risk Management and Compliance Exec in Outsourcing and Technology Services.
99 followers |

Daniel Turner

I am a 2nd year student studying Ethical Hacking for Computer Security BSc (Hons), I have a general interest in computers and computer security.
68 followers |

Rohit K

Geek,Pen-tester,blogger
58 followers |

Bev Robb

A teksquisite account that is just for fun!
30 followers |

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