Maarten Goet @handle.invalid Microsoft MVP since '07 & Microsoft RD since '15, Chief Threat Officer at Wortell, Founder of Experts Live.
Bart Thijssen @bartthijssen.bsky.social Master of (Keeping/Stealing) your Secrets | Security Advisor & Intel Analyst | Civil Servant @ BE | Klopjacht-speurder | IT Eng. + Pol. Sci. | Posts my own
Catalyst Security @catalystsecurity.com Excellence in Research
Thijs Bosschert @thice.bsky.social Allround Security, IR & SOC professional. Escape room, CTF & game creator. Organizer WHY2025 CTF. Mediocre lockpicker. CTF teams: Eindbazen, Jobless Hackers and Spotless.
https://cybersecurity-escaperoom.com/
https://thice.nl/
https://ctf.why2025.org
Geert Smelt @sme.lt InfoSec Team Red, #TranceFamily member, Metal enthousiast, TV show fanatic, gamer, beer connoisseur in training
Xoreax @xoreax.bsky.social Graduate Student and Windows Kernel enjoyer
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.
Formula 1 @f1tv.bsky.social The home of risk takers, late brakers and history makers ✨ unofficial
@mgeeky.bsky.social @mgeeky.bsky.social 
Orange Tsai @orange.tw This is 🍊
OrangeCon @orangecon.nl The Dutch Cybersecurity Conference! Experience the Hackers Community in Amsterdam, on June 4th 2026!
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
@domchell.bsky.social @domchell.bsky.social 
Jonathan Bar Or ("JBO") 🇮🇱🇺🇸 @yo-yo-yo-jbo.bsky.social Security research architect for Microsoft Defender for cross-platform.
Linux, Windows, Android, MacOS, iOS, ChromeOS, baremetal.
https://jonathanbaror.com
Luke Jahnke @nastystereo.com Blogging at https://nastystereo.com
ESET Research @esetresearch.bsky.social Security research and breaking news straight from ESET Research Labs.
welivesecurity.com/research/
Georgije Vukov @vuk0v.bsky.social nop ; Note that anything expressed does not necessarily coincide.
Alex Neff @al3x-n3ff.bsky.social Pentester | Maintainer of NetExec | aneff.io
Rich Warren @buffaloverflow.rw.md Red Team & Offensive Security Research @amberwolfsec.bsky.social
@johnnyspandex.bsky.social @johnnyspandex.bsky.social 
AmberWolf @amberwolfsec.bsky.social Offensive Cyber, Risk Management & Governance, Vulnerability Research and Technical Due Diligence
d0ntrash @d0ntrash.bsky.social Security Researcher @neodyme.io | CTF, Fuzzing, Embedded Security
CyberSpark @handle.invalid Cyber
Udayveer Singh @handle.invalid Offensive Security | Red Teamer | Learning MalDev | OSEP | CRTL | OSWP | CRTO | CRTE | CRTP | CESP-ADCS | eJPT
http://m4lici0u5.com
Aloïs Thévenot @techbrunch.fr Jack of all trades, master of some. CTO / Pentester
Tomas Rzepka @1njected.bsky.social Founder and Senior👨🦳security consultant at Rzec | OSEP yada yada | Attacker/Defender | Causer of guru meditations | Creator of 4bar loops 🇸🇪
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
evilmog @mog.evil.af X-Force, Shenanigans, Hashcat, Church of WiFi, Black Badges, MUDs, Dad Jokes, some Infosec.
Twitter: @evil_mog
uɐpʇou@ ✸ @notdan.bsky.social genuinely flawed satire ه҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿ im U17r4H4rd(0r3 d00d
Jonas Vestberg @bugch3ck.bsky.social Privilege Escalation Engineer
Principal Consultant @ Reversec (formerly WithSecure Consulting)
@vierito5.bsky.social @vierito5.bsky.social Gneeeeeeeeeeinfoseeeeeeeeeeeec. Broken villain, former something.
Marc Smeets @marcoverip.bsky.social Does a thing or two with red teaming @ Outflank | part time race and drift car instructor
Cooper @ministraitor.bsky.social Dutch software dev who spends his free time travelling all over the place to film a whole bunch of (mostly) security conferences.
PyroBatNL @pyrobatnl.bsky.social ICT, infosec, privacy, veiligheid.
FPM: vuurwerk, explosieven, chemie
🍫Chocola🍄Efteling💙Blauw
🦇vliegmuisjes #LEGO *Socialist *Nieuwsgierig
Bojan Zdrnja @bojanz.bsky.social IT Security guy, penetration testing is my thing. One of the SANS Internet Storm Center handlers at https://isc.sans.org.
SANS SEC542 instructor and course co-author, SEC565 instructor.
I lead the penetration testing team at INFIGO, https://www.infigo.is
BSides London @bsideslondon.bsky.social 📅 13 Dec 2025 | 📍 Novotel London West
Grassroots-driven security conference.
Built by the local InfoSec community, for the community.
Web: https://BSides.London
X/Twitter: https://x.com/BSidesLondon
#BSidesLDN2025
Lefteris Panos @lefterispan.bsky.social Interested in Offensive security
Sysinternals @sysinternals.com Created by Mark Russinovich and Bryce Cogswell and later acquired by Microsoft, Sysinternals utilities help you troubleshoot and manage your Windows systems.
Tom Wolters @tomsec.bsky.social AKASEC, Making the Dutch IT more secure, Cybersecurity, DIVD, Research, CTI, Go, Python
Thijs Alkemade @xnyhps.nl Security Researcher.
Stef @stefvandop.nl KPN redteam, member of a hackerspace in amsterdam, bla bla.
He/him. I believe that climate change is real and that vaccines are good.
Mostly here for infosec stuff.
Check us out for next year: https://orangecon.nl/ 
Antonio Cocomazzi @splintercode.bsky.social offensive security - windows internals - reverse engineering | X: https://x.com/splinter_code | Mastodon: https://infosec.exchange/@splinter_code | GitHub: https://github.com/antonioCoco | Blog: https://splintercod3.blogspot.com/
Matteo Malvica @matteomalvica.bsky.social content dev and researcher @offsectraining | r&d @OutflankNL | 🥁
www.uf0.org
mthcht @mthcht.bsky.social Threat Hunting - DFIR - Detection Engineering
🐙 https://github.com/mthcht
🐦 https://x.com/mthcht
📰 https://mthcht.medium.com
SpecterOps @specterops.io Creators of BloodHound | Experts in Adversary Tradecraft | Leaders in Identity Attack Path Management
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
Nate Subra @natesubra.com Adversary Simulation, Red Team Lead, Security Research @ LFI
Posts are my own
He/Him
#redteam #offsec #malware #cybersecurity
https://secdsm.org
I use my real name. The trick is figuring out my handles
@natesubra@infosec.exchange
DTM @dtmsecurity.bsky.social Hacker, Security Engineer and Researcher.
https://dtm.uk/
@mickeydb.bsky.social @mickeydb.bsky.social Red Team @ EY FSO | HTB 🇧🇪 ambassador
mbaedev.notion.site
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Berk Albayrak @brkalbyrk.bsky.social Threat Research Team Lead @malwation | TI | OSINT | DFIR | TA2AQX 📡
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
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
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
Tib3rius @tib3rius.bsky.social Web App (mostly) Hacker | Cybersecurity Educator | Content Creator | Ex-Brit | Links: http://linktr.ee/tib3rius (he/him) 🇺🇸 A mostly unserious person. @therealc3rul34n.bsky.social is bae 🥰
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
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
Black Hat @blackhatevents.bsky.social The world's premier Technical Cybersecurity Conference Series
Swissky @swissky.bsky.social RedTeam | Pentest
Author of PayloadsAllTheThings & SSRFmap
http://github.com/swisskyrepo
harmj0y @harmj0y.bsky.social Researcher @SpecterOps. Coding towards chaotic good while living on the decision boundary. #dontbanequality
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
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
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Marcello @byt3bl33d3r.bsky.social Running on vibes. Cyber vibes.
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
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.
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
Kyle Avery @kyleavery.bsky.social https://x.com/kyleavery_
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
@obluna.bsky.social @obluna.bsky.social - W @wwwdata.bsky.social @wwwdata.bsky.social
Stijn Meijer @stijn.blue Information security & red teaming 🦁 ° technology & innovation 🚀 ° interested in the energy transition ⚡
Utrecht province, NL