Help Net Security @helpnetsecurity.com Independent cybersecurity news since 1998.
Elliot @journalizer.bsky.social Director for Microsoft Threat Intelligence. I only post about cybersecurity and raising chickens.
DEF CON @defcon.bsky.social The world’s premier hacker conference. Serving the global hacker community since 1993.
Defcon.org
Forum.defcon.org
Defcon.social
Sherrod @sherrod.bsky.social It’s me. Sherrod DeGrippo 
Steve Syfuhs @syfuhs.net Noted idiot. Principal something or other. Runs the Windows Authentication team at Microsoft. It's my fault your password doesn't work.
Mostly dog pictures. Might actually be two dogs in a trench coat. 🇺🇸 / 🇨🇦
https://syfuhs.net/
Frank X. Shaw @fxshaw.com hobby bread baker, cyclist, snowboarder, runner, speculative fiction fan (send book recommendations!). Also: lead communications at Microsoft, USMC veteran, Oregon Duck fan. Personal stuff at https:/www.fxshaw.com
TechCrunch @techcrunch.com Technology news and analysis with a focus on founders and startup teams.
Got a tip? http://techcrunch.com/tips
The Guardian @theguardian.com The need for independent journalism has never been greater. Become a Guardian supporter https://support.theguardian.com
🇺🇸 Guardian US https://bsky.app/profile/us.theguardian.com
🇦🇺 Guardian Australia https://bsky.app/profile/australia.theguardian.com
UK_Daniel_Card @mrr3b00t.bsky.social 
Mark Russinovich @markrussinovich.bsky.social CTO of Microsoft Azure, author of novels Rogue Code, Zero Day and Trojan Horse, Windows Internals, Sysinternals tools. Opinions are my own.
Dan Raywood @danraywood.bsky.social Content creator and writer, sometimes speaker, analyst and marketer. Spurs fan and Spurs women season ticket holder, traveller, beer drinker and occasional personal stuff sharer.
Matt Kapko @mattkapko.com Cybercrime reporter @ CyberScoop • Grateful lifelong Californian • matt.49 on Signal • matt.kapko@cyberscoop.com • mattkapko.com
Lawrence Abrams @lawrenceabrams.bsky.social Ransomware, Online Security, and Malware. Owner, Editor in Chief of @bleepingcomputer.com
DM on Signal: LawrenceA.11 * Telegram: lbleeper * http://infosec.exchange/@lawrenceabrams
Sarah Armstrong-Smith @sarahasmith.bsky.social Executive Security & Crisis Leader, Keynote Speaker, Best-selling Author, Lover of Doggos 🐶 🇬🇧
Kevin Jones @vcsjones.dev Alexandria, VA.
He / they
Product Security and Cryptography at GitHub / Microsoft. .NET maintainer. Not speaking for my employer.
https://vcsjones.dev ⚫️ https://gh.io/vcsjones
Kim Zetter @kimzetter.bsky.social Journalist - cyber/natn'l security. Speaker. Georgetown adjunct prof. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon
Signal: KimZ.42
https://www.zetter-zeroday.com
Bloomberg News @bloomberg.com The first word in business news.
Newsletters: http://bloom.bg/newsletters
Podcasts: http://bloom.bg/podcasts
The Big Take podcast: http://trib.al/jtoXfuT
David Fowler @davidfowl.com Distinguished Engineer @ Microsoft 🧐. Creator of NuGet, SignalR and ASP.NET Core, Barbadian 🇧🇧, Tennis Player.
Steve Ginty @seginty.bsky.social 
Rod Trent @rodtrent.com Christian. Husband. Father. Runner. Speaker. Author. Capitalist. Cyber and AI at Microsoft. Dude/Bro.
Andy Greenberg @agreenberg.bsky.social Writer for WIRED. Author of SANDWORM. Latest book, TRACERS IN THE DARK: The Global Hunt for the Crime Lords of Cryptocurrency, out now. agreenberg@wired.com. Andy.01 on Signal.
jon greig @jgreig.bsky.social cybersecurity reporter for The Record.
formerly: zdnet, techrepublic, blavity, haitian times, cambodia daily
— send tips to jonathangreig11@protonmail.com or signal: jgreig.51
Greg Otto @gregotto.bsky.social @gregotto from twitter, now on bluesky. Editor-in-Chief at CyberScoop. Host of Safe Mode. Better with words than I am with code.
Patrick Howell O’Neill @patrickhowelloneill.com Journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/authors/AXb8dLPHBFc/patrick-howell-oneill
The Record @therecordmedia.bsky.social Covering the world of cyber and intelligence from every angle.
Black Hat @blackhatevents.bsky.social The world's premier Technical Cybersecurity Conference Series
Dark Reading @darkreading.bsky.social One of the most widely read and trusted cybersecurity news sites, providing IT security professionals informed insights into the latest news and trends.
CYBERWARCON @cyberwarcon.bsky.social CYBERWARCON is a one-day conference in Arlington, VA focused on the specter of destruction, disruption, and malicious influence on our society through cyber capabilities.
cyberwarcon.com
Jen Gentleman @jenmsft.bsky.social I work on the Windows engineering team at Microsoft and help with feedback for Start menu, Settings, taskbar, input + more
You can find me on most of the other social media apps including Twitter and reddit with the same account name @jenmsft
Sean Lyngaas @snlyngaas.bsky.social Cybersecurity reporter, CNN. Signal +1-202-355-8471 or SNLyng.11. sean[dot]lyngaas@cnn[dot]com|slyngaas@proton[dot]me
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
Virus Bulletin @virusbtn.bsky.social Security information portal, testing and certification body.
Organisers of the annual Virus Bulletin conference.
Katie Nickels @likethecoins.bsky.social 
SLEUTHCON @sleuthcon.bsky.social Tickets for 2026 are now available!
https://www.sleuthcon.com
INTERPOL @interpol.int Connecting police & catching criminals in 196 countries for more than a century. 🕵️
Follow our success stories here. 👮♂️🚔👮♀️
✍️ Report crimes to your local police.
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
lintile @lintile.lol now available as a browser extension
Grifter @grifter801.bsky.social Threat Hunting & DFIR, Hacker, Geek, DEF CON & Black Hat CFP Review Board Member, DEF CON Contest/Events/Demo Labs Dept. Head, Black Hat Staff, DC801 Founder
WIRED @wired.com For Future Reference.
Sign up for our newsletters: https://wrd.cm/newsletters
Find our WIRED journalists here: https://go.bsky.app/Boj9b5E
Lily Hay Newman @lhn.bsky.social Security reporter for WIRED Magazine. she/her/my man. Signal +1 (347) 722-1347
Matt Burgess (WIRED) @mattburgess1.bsky.social Security writer @wired.com
Cybercrime, privacy, surveillance, and more.
Signal: mattburgess.20 | Email: matt_burgess@wired.com
CyberScoop @cyberscoop.bsky.social We report on news and events impacting technology and security. https://linkin.bio/cyberscoop/
Reuters @reuters.com 
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
GitHub @github.com The AI-powered developer platform to build, scale, and deliver secure software.
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
Vasu Jakkal @vasujakkal.bsky.social CVP Microsoft Security | Board of Directors, Aptiv
Follow me on LinkedIn for regular updates: https://www.linkedin.com/in/vasu-jakkal/
David (DWIZZZLE) Weston @dwizzzle.bsky.social Corporate Vice President, OS Security and Enterprise @Microsoft
Ann Johnson @ajohnsocyber.bsky.social Cyber. Family. Dogs. Reading. Music. Baking. Cooking. Gardening. Pro sports. At Mastercard. But posts are just me.
BleepingComputer @bleepingcomputer.com Breaking cybersecurity and technology news, guides, and tutorials that help you get the most from your computer. DMs are open, so send us those tips!
The Register @theregister.com Your favorite enterprise technology news vultures, flying high in the Bluesky – On the web since 1998 – More here: https://www.theregister.com/
CNN @cnn.com Asking the hard questions and bringing unique perspectives from across the globe. This is CNN.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
Microsoft Research @msftresearch.bsky.social We advance science and technology to benefit humanity.
http://microsoft.com/research
Microsoft Security @security.microsoft.com 
Microsoft @microsoft.com AI, Cloud, Productivity, Computing, Gaming & Apps ☀️