John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Hanna Notte @hannanotte.bsky.social Russia | Director for Eurasia @JamesMartinCNS | Snr Associate @csiserep | Fellow @kennaninstitute | Book: WE SHALL OUTLAST THEM | http://hannanotte.com | Berlin-based
Gregory Brew @gbrew24.bsky.social Analyst EurasiaGroup. Iran, energy. Wrote some books.
RenderScape @renderscape.bsky.social RuneScape's biggest virtue signaller and best pigeon poster
I also make OSRS videos :)
He/Him cis ally from the UK
Can't use DMs here, contact me via discord
Danny Lin @kdrag0n.dev kdrag0n.dev · building a better docker @ orbstack.dev · stanford
Mr.Un1k0d3r @mrun1k0d3r.bsky.social Live hacking content https://truecyber.world/
Red team training https://mr.un1k0d3r.world/training/
Github https://github.com/Mr-Un1k0d3r
Dima @dima.ninja https://x.com/DaWouw
@outflank.bsky.social @outflank.bsky.social 
CCob🏴 @ethicalchaos.bsky.social Ceri Coburn: Hacker | R̷u̷n̷n̷e̷r̷ DIYer| Vizsla Fanboy and a Little Welsh Bull apparently 🏴
Author of poorly coded tools: https://github.com/CCob
Rich Warren @buffaloverflow.rw.md Red Team & Offensive Security Research @amberwolfsec.bsky.social
TheWover @thewover.bsky.social A mountain man with an Internet connection and a professional interest in malware.
@domchell.bsky.social @domchell.bsky.social 
bohops @bohops.bsky.social Mostly on X
GitHub @github.com The AI-powered developer platform to build, scale, and deliver secure software.
@mgeeky.bsky.social @mgeeky.bsky.social 
Cobalt Strike @cobaltstrike.bsky.social Official account for Cobalt Strike. Benchmark red teaming tool known for its flexibility and powerful user community. Follow for new releases and other updates.
Raphael Mudge @raphaelmudge.bsky.social Riding around in the breeze. USAF Veteran.
Phoenix by Tapbots @phoenix.tapbots.com An upcoming Bluesky Client for iOS/iPadOS & Mac from the makers of Tweetbot and Ivory.
Please don't take it personally if we don't respond often with this account. We are extremely busy working on Phoenix.
https://tapbots.com/phoenix
Lukasz Olejnik @lukaszolejnik.bsky.social Security & Privacy. Data Protection. Research & Development. Engineering. Analyst. Policy. W3C. Consultant. Author. King’s College London/War Studies. me@lukaszolejnik.com
lukaszolejnik.com/books
blog.lukaszolejnik.com
techletters.substack.com
Ulrike Franke @rikefranke.eu Senior Fellow at European Council on Foreign Relations. #Drone politics PhD @ox.ac.uk. Teaches at @SciencesPo.bsky.social. Writes about all things #Germany #Defence #miltech. Podcast host at @SicherheitsPod.de & LeCollimateur
Emma Burrows @eburrows.bsky.social AP European Security Correspondent. Previously with CNN in Moscow & ITN in London. Speak Russian & Spanish
Clément Labro @itm4n.bsky.social Pentest & Windows security research
Michael Weiss @michaeldweiss.bsky.social Editor @insidereng, host @foreignoffpod, https://substack.com/@macspaunday, ISIS: Inside the Army of Terror: http://goo.gl/Jb6uEA. Next book on the GRU for @vikingbooks. macspaunday@protonmail.com
RastaMouse @rastamouse.me make pic +relax
OSRS Wiki @oldschool.runescape.wiki The OSRS Wiki is the official wiki based on the old-school MMORPG, Old School RuneScape! ⚔️ Find us at oldschool.runescape.wiki. For RS3: @runescape.wiki
SensePost @sensepost.com Work like hell,
Share all you know,
Abide by your handshake,
Have fun. - Dan Geer
Martin Carska @crskm.bsky.social Openvibe developer 🐙🇨🇿
Marc Smeets @marcoverip.bsky.social Does a thing or two with red teaming @ Outflank | part time race and drift car instructor
Lee Chagolla-Christensen @tifkin.bsky.social I like making computers misbehave. Does stuff at http://specterops.io.
Github: https://github.com/leechristensen
Mastodon: @tifkin_@infosec.exchange
FalconForce @falconforce.nl Building a resilient digital society through highly specialised digital security consulting.
Huib Modderkolk @huibmodderkolk.bsky.social Onderzoeksjournalist Volkskrant
Going dark
h.modderkolk at volkskrant.nl
Signal: hmodderkolk.20
5pider @5pider.net researcher and developer
Marques Brownlee @mkbhd.com Video maker
Jimmy Rushton @jimmyrushton.bsky.social Kyiv based foreign policy/security analyst
Currently focused on the Russian invasion of Ukraine
Special Correspondent at the Kyiv Independent - opinions mine alone
Bridgy Fed for the fediverse @ap.brid.gy Bridgy Fed (https://fed.brid.gy/) bot user for the fediverse. To bridge your account to the fediverse, follow this account.
To ask a fediverse user to bridge their account, send their address (eg @user@instance) to this account in a chat message.
More i…
Basic Apple Guy @basicappleguy.com Basic (ˈbeɪ.sɪk’; Adj): lover of all things mainstream, popular, & trending in the world of .
https://basicappleguy.com
Paul Pols @paulpols.bsky.social Ethical Hacker • Master of Laws • Ransomware Resilience Lead @ Secura • Lecturer @ University of Leiden • Views are my own
Signal @signal.org Signal is a nonprofit end-to-end encrypted communications app. Privacy isn’t an optional mode, it’s the way Signal works. Every message, every call, every time. https://signal.org/donate/
Openvibe @openvibe.social The App for Connecting Open Social Web
Mastodon, Bluesky, Nostr, Threads in ONE app, in ONE feed ✨
https://openvibe.social
Kyle Avery @kyleavery.bsky.social https://x.com/kyleavery_
SpecterOps @specterops.io Creators of BloodHound | Experts in Adversary Tradecraft | Leaders in Identity Attack Path Management
Csaba Fitzl @theevilbit.bsky.social macOS Security -- Trail running 🏃 -- Mountains ⛰ -- Tolkien fan
harmj0y @harmj0y.bsky.social Researcher @SpecterOps. Coding towards chaotic good while living on the decision boundary. #dontbanequality
Joseph Cox @josephcox.bsky.social Hacking/crime/privacy journalist. Author of DARK WIRE, buy here: https://www.hachettebookgroup.com/titles/joseph-cox/dark-wire/9781541702691/#preorder Co-founder of 404 Media. Signal: joseph.404 Email: joseph@404media.co
Best of Dying Twitter @bestofdyingtwit.bsky.social Looking into it. Chief Looker: @jenn.bsky.social
Haroon Meer @haroonmeer.canary.love Security Geek. We build Thinkst Canary - https://canary.tools
@sapirxfed.bsky.social @sapirxfed.bsky.social Security researcher.
I have a blog: https://sapirxfed.com
Dirk-jan @dirkjanm.io Hacker at outsidersecurity.nl. Researches Entra ID, AD and occasionally Windows security. I write open source security tools and do blogs/talks to educate others on these topics. Blog: dirkjanm.io
Costin G. Raiu @craiu.bsky.social Romanian antihacker from another planet. #threatintel #yara #chess #taekwondo black belt
Motto: "One reboot a day keeps the implant away"
J. A. Guerrero-Saade (JAGS) @jags.bsky.social VP of Intelligence and Security Research, Senior Technical Fellow (AI) @ SentinelOne.
Distinguished Fellow and Adj Professor @ Hopkins SAIS Alperovitch Institute. Three Buddy Problem Co-Host. LABScon Founder, Cyber Paleontologist, Fourth-Party Collector.
Mark Dowd @mdowd.bsky.social Internet hacker
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
OSRS Memes @osrsmemes.bsky.social I steal OSRS memes from that guy who steals OSRS memes. But I actually give credit when I know the author. In case I don't and I posted your meme lmk and I'll take it down or give you credit for it :D
syndrowm @syndrowm.com Hacker, CTF, CCDC, BJJ Brown Belt, python, rust, malware
https://www.offensivecontext.com
https://puck.tools
https://www.malicious.fit
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
sysengineer @sysengineer.dev I do not give Facebook permission to print anything off my computer
Hexacorn @hexacorn.bsky.social Red Brain, Blue Fingers
Malware Analysis, Reverse Engineering, Threat Hunting, Detection Engineering, DFIR, Security Research, Programming, Curiosities, Software Archaeology, Puzzles, Bad dad jokes
https://www.hexacorn.com/blog/
hexacorn@infosec.exchange
Kuba Gretzky @mrgretzky.breakdev.org Offensive security tools developer. Malware developer, hobby music producer, bedroom DJ & ex-MMO game hacker. Creator of Evilginx / Bartender @ BREAKDEV RED.
Flangvik @flangvik.bsky.social Team Lead Kovert AS, previously Red Team TrustedSec, terrible creator of InfoSec content 📹Opinions are my own and not the views of my employer.
Cas van Cooten @casvancooten.com @chvancooten on the bird app 🐦
---
Benevolently malicious offensive security enthusiast || OffSec Developer & Malware Linguist || NimPlant & NimPackt author || @ABNAMRO Red Team
Bad Sector Labs @badsectorlabs.com Cybersecurity news, techniques, exploits, and tools every week at http://blog.badsectorlabs.com 🐘@badsectorlabs@infosec.exchange
b33f @fuzzysec.bsky.social 意志 / Antiquarian @ IBM Adversary Services / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching
at labs.calypso.pub
netbiosX @netbiosx.bsky.social Purple Team
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
Dominic White @singe.bsky.social Hacker at Orange Cyberdefense's SensePost Team
https://hello.singe.za.net/
Marcello @byt3bl33d3r.bsky.social Running on vibes. Cyber vibes.
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Alex Ionescu @ionescu.bsky.social Windows Internals Author, Developer, Reverse Engineer, Security Researcher, Speaker, Trainer, and most recently Nation State Hacker.
Core OS Platform Developer at Apple, Hyper-V Vendor at Microsoft, Chief Architect at CrowdStrike and now Director at CSE.
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
Frederic Jacobs @fredericjacobs.com www.fredericjacobs.com
https://ger.mx/A-RGsldmQt0iXfnzPgXNzLzA5_jvDbWHabqz1yJrt2ma#did:plc:oxwmqopgbm3driwzues7odpz
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
Micah Lee @micahflee.com Doing what I can to keep activists, journalists, and researchers safe and productive — writing at https://micahflee.com — author of HACKS, LEAKS, AND REVELATIONS https://hacksandleaks.com — signal: micah.01
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Lorenzo Franceschi-Bicchierai @lorenzofb.bsky.social Real-time historian of the late cyber capitalist era @TechCrunch, writing about the intersection of hackers, human rights, and spies.
Also writing a book about Hacking Team and the history of government spyware.
☎️ Signal: +1 917 257 1382
the grugq @thegrugq.bsky.social 
@mikko @mikko.bsky.social Fighting malicious use of technology.
Christopher Soghoian @christopher.soghoian.net Previously: Senior Advisor for Privacy and Cybersecurity, Office of Senator Ron Wyden.
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.
404 Media @404media.co it's a website (and a podcast, and a newsletter) about humans and technology, made by four journalists you might already know. like and subscribe: 404media.co
Dan Goodin @dangoodin.bsky.social Cybersecurity Reporter, Ars Technica: https://arstechnica.com/author/dan-goodin/ Hungry for tips. Text me on Signal: DanArs.82. "The world isn’t run by weapons anymore, or energy, or money. It’s run by little 1s and 0s, little bits of data."