@anon239081212.bsky.social @anon239081212.bsky.social 
@eggshot.bsky.social @eggshot.bsky.social 
Xeno Kovah @xenokovah.bsky.social Interested in reverse engineering, firmware, bluetooth, trusted computing, and training. Founder of OpenSecurityTraining2 https://ost2.fyi
Rayna 🤓🇪🇺👩💻📚✍️ @maliciarogue.bsky.social 💼CEO RS Strategy
✍Award-winning writer
🧠Practitioner in residence @ CIS-CNRS
ex🧬scientist | Amba @DigitalEU | ❤️🚆 | Polylingual
Uncertainty management, strategy, foresight #Infosec #EU #FLOSS
I contain multitudes
📌Elsewhere: https://linktr.ee/maliciarogue
vx-underground (automated mirror) @vxundergroundre.bsky.social The largest collection of malware source code, samples, and papers on the internet.
Password: infected
(unofficial, this is a bot! Maintained by a private individual, the bot can't handle retweets or replies, support soonish)
Myrtus @malwareindepth.com Malware Researcher | Developer | @Cryptolaemus1
| @NVIDIA
Will happily talk about malware with anyone.
Richard Johnson @richinseattle.bsky.social Fuzzing; Vulnerability Research;
Deep Learning; Reverse Engineering
Training & Publications @ http://fuzzing.io
Hacking the planet since 1995
Undercurrents.io BOFH
I'll stop the world and melt with you
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Matthew Garrett @mjg59.eicar-test-file.zip Former biologist. Actual PhD in genetics. Security, OS security teaching at https://www.ischool.berkeley.edu.
Blog: https://codon.org.uk/~mjg59/blog
Signal: @mjg.59
He/him
Opinions expressed here are mine, not my employer's
GreyNoise @greynoise.io GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
Dave Wilburn @davemwilburn.bsky.social Recovering infosec engineer, machine learning for infosec, sailor, news junkie, threat intel consumer, deep statist. All opinions are mine. Also see my account on Mastodon/Fediverse, @davemwilburn@infosec.exchange
Allan “Ransomware Sommelier” Liska @ransomwaresommelier.com Recorded Future - Ransomware Researcher
Owner @greenarcher.io - Yours Truly, Johnny Dollar | The Press Guardian | The Clock | The Green Archer
Weird mix of security, comics, photography and wine!
www.greenarcher.io
@mikko @mikko.bsky.social Fighting malicious use of technology.
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
SecByT̷͔̼̯̖̟͔͎͑̽o̶͚̠̰͚̩̻̝̰͂̿̔̄̊́͘m̷̡̟̍́̏̔ @techbytom.bsky.social Privacy, motorcycle, and craft beer geek. Adversarial thinker. Blue team your blue team for better red teaming.
hackerfantastic.crypto @hackerfantastic.bsky.social Co-Founder https://hacker.house cyber security assurance & hacker training ~ ISBN9781119561453 ~ a book on professional hacking. Contact for competitive quotes on cyber security projects. 
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.
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Tim Medin @timmedin.bsky.social Kerberoast Guy • RedSiege CEO • Hater of Pants • Former SANS 560 Author, Senior Instructor • Packers owner • Work Req: http://redsiege.com/contact
UK_Daniel_Card @mrr3b00t.bsky.social 
harmj0y @harmj0y.bsky.social Researcher @SpecterOps. Coding towards chaotic good while living on the decision boundary. #dontbanequality
Andy Gill @zephrfish.yxz.red Defcon goon, Adversarial Architect. Photography, Driving, Blog and general purveyor of chaos. Metal/DnB Fan creator and owner of https://lms.zsec.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.
Matteo Malvica @matteomalvica.bsky.social content dev and researcher @offsectraining | r&d @OutflankNL | 🥁
www.uf0.org
Ali Hadi | B!n@ry @binaryz0ne.bsky.social DFIR and Adversary Simulation
corgi @c0rg1.bsky.social I hack things
Swissky @swissky.bsky.social RedTeam | Pentest
Author of PayloadsAllTheThings & SSRFmap
http://github.com/swisskyrepo
Łukasz @maldr0id.bsky.social Military-grade reverse engineer @ Google, working on Android malware
Got mistaken for a member of Project Zero once.
Everything here is my own opinion
he/him ✨🌈🦄
Euz / Matthieu @euz.bsky.social 
Dmitri Alperovitch @dmitri.silverado.org Geopolitics, Russia, China, Cyber
Chairman @silverado.org
Author of WorldOnTheBrink.com
Host GeopoliticsDecanted.com podcast
Founder Alperovitch Institute for Cybersecurity Studies at Johns Hopkins SAIS
Co-Founder CrowdStrike
@DAlperovitch elsewhere
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Mitch @g0dmode.bsky.social Hacker, Red Teamer @ Cyndicate Labs
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
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
@halvarflake.bsky.social @halvarflake.bsky.social 
b1ack0wl @b1ack0wl.com 0day Researcher @ ████████████ / Baker / 0wl
// I post random things on here
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
audibleblink @ctrl.red Self Hating Red Teamer - Legitimate Business Practice
🐦: @4lex
Laughing Mantis @laughingmantis.bsky.social VXer, Computer Goth, Malware Musician
netbiosX @netbiosx.bsky.social Purple Team
Yarden Shafir @yardenshafir.bsky.social A circus artist with a visual studio license
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.
Matt Creel @tw1sm.bsky.social Adversary Simulation | Wannabe
https://twitter.com/tw1sm
https://blog.tw1sm.io
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
James 🏴 @two06.bsky.social Targeted Ops @TrustedSec. Hacker of things, writer of bad code. This is our world now... the world of the electron and the switch, the beauty of the baud.
https://linktr.ee/two06
Csaba Fitzl @theevilbit.bsky.social macOS Security -- Trail running 🏃 -- Mountains ⛰ -- Tolkien fan
pwneip @pwneip.bsky.social Principal RTO @F500, SANS Instructor & #SEC565 Red Team Ops Author, Red Team Village lead, former Bishop Fox, US Air Force. Tweets are my own, memes are stolen
Kyle Avery @kyleavery.bsky.social https://x.com/kyleavery_
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
Tijme Gommers @tijme.bsky.social Offensive Security at ABN AMRO Bank 🏦. Red Teaming, Malware Development & Reverse Engineering 🐙. Cyber Cyber Cyber ⚡️.
DTM @dtmsecurity.bsky.social Hacker, Security Engineer and Researcher.
https://dtm.uk/
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
Cyber Naval Chair @cybernavalchair.bsky.social La recherche en cybersécurité au service du monde naval.
#cybersecurity #research #training #ship #PhD
https://chaire-cyber-navale.fr/
@j0hnb3r00t@infosec.exchange @j0hnb3r00t.bsky.social Infosec enthusiast. Stagiaire au #GIGN (Groupe Interceltique des Grammar Nazis). @uybhys.bsky.social crew
Anaïs Meunier @principedebase.bsky.social DISARM, STIX : rapprocher le cyber et la manipulation de l’information.
Signal sur bruit happy founder & M82-project happy manager
Production du podcast Signal sur le bruit, le podcast qui part de la forêt pour aller à l’écureuil- M Maritime Cyber @maritimecyber.bsky.social maritime cyber hamradio #opensource #SDR
James Atack @jamesatack.com Cyber defender with an offensive name.
CTO at @onyphe.io | http://onyphe.io
Managing your attack surface... from Europe 👀
Opinions : all mine
Special skill : machine empathy
Romain de Joux @gkar0.bsky.social Dev, Tech Lead Object Storage, Python, Rust, ...
Patrice <GomoR> Auffret @patriceauffret.bsky.social ONYPHE founder, CEO and CTO - FreeBSD & Perl sculptor rather than GNU/Linux & Python - My views are those of my employer
Guillaume PRIGENT @g0ul4g.bsky.social Freethinker, senior software & security researcher. C++, OSINT, Python and Open Source Hacker. DIATEAM Chairman & co-founder.
G6K @g6k.bsky.social Couteau-presque-suisse
#Hobbit de la Franche Comté
#Music #IT et sciences molles.
Unlock Your Brain, Harden Your System @uybhys.bsky.social The Wild Wild #infosec Conference organisée par
AnDaolVras, la Cantine numérique de Brest
11e édition : les 6 & 7 novembre 2026 à #Brest !
unlockyourbrain.bzh
discord https://discord.gg/ymWUFCkXcZ
#secnum
#UYBHYS
·.·¦·NicoladiaZ·.·¦· @nicoladiaz.bsky.social #infosec @rsf.org • Politics & World Music Enthusiast · 🤘 · #BugBounty #CVD • @uybhys.bsky.social Founder • #HumanRights • GPG 0xE31520ED1DB95EAE • Twitter : @NicoladiaZ
Bellingcat @bellingcat.com Bellingcat is a global collective uncovering facts to hold power to account. Our work is independent. Our methods are public. Our community is global.
Want to support our charity? bellingcat.com/donate
Pr3tz3l @pr3tz3l.bsky.social 
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Hydraze @hydraze.bsky.social CSIRT Manager, interested in passwords security, member of Zenk-Security.
http://infosec.exchange/web/@hydraze
Bruno Tréguier @bruno.treguier.org Self-proclaimed IT dinosaur, Unix & Open Source geek with a soft spot for embedded systems, IT security, open hardware, radio, and crossbreeds of all that stuff.
Team #UYBHYS
#Hamradio call: F8FIV
Chef du #GIGN (Groupe Interceltique des Grammar Nazis).