Vas Panagiotopoulos @vaspanagiotopoulos.com Journalist interested in #surveillance | Contributor: @wired.com | @ftm.eu | Covers 🇬🇷 for @rsf.org | Researcher: @deakinuniversity.bsky.social | 2026 Fellow @techpolicypress.bsky.social
☏ Signal: vas.99
http://vaspanagiotopoulos.com
thebaldgeek @thebaldgeek.bsky.social Decoding satcom ACARS messages one byte at a time. Helping OSINT avgeeks understand aircraft data / tracking. Maps and live data can be found here: thebaldgeek.github.io
daniel:// stenberg:// @bagder.mastodon.social.ap.brid.gy I write curl. I don't know anything.
🌉 bridged from ⁂ https://mastodon.social/@bagder, follow @ap.brid.gy to interact
Karl Fosaaen @kfosaaen.bsky.social VP of Research - @netspi
Co-author of “Penetration Testing Azure for Ethical Hackers” (http://amzn.to/3GOvW3A).
@kfosaaen on most other platforms
Rohan Vazarkar @cptjesus.bsky.social Former Pentester
Engineer at SpecterOps
Author of BloodHound
Lars Karlslund 🇩🇰 @lkarlslund.bsky.social Curious security octopus | Adalanche Attack Graph Analyzer / 8.7B hashes http://ntlm.pw / NIFO Defender Removal | Sarcasm level 11 | All thoughts, no leadership | 🇩🇰 🇺🇦
🔮 Daniel Hückmann @sanitybit.com ∞ 42 ∞
📷 Photography: @danielhuckmann.com
🌐 Organizer: @rainsec.org || @netsec.bsky.social
🦋 InfoSec, Psychedelics, Psychology, & Neuroscience
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.
Todd @nullkrysus.bsky.social just a short person trying to do the cyberz
Ryan Maloney @ryan.maloney.social Infosec nerd, PNW outdoor enthusiast, and wrangler of 2 tiny humans.
Managing Director at NetSPI
Mark Morowczynski @markmorow.com Principal Security Researcher @Microsoft. Author, Blogger, Speaker, and Baseball Nerd. Always has an overwhelming backlog of books and video games to get through.
Andy Robbins @andyrobbins.bsky.social aka wald0
Space Rogue @spacerog.bsky.social I fight for the user. | L0pht Heavy Industries - ATStake - Whacked Mac Archives - Hacker News Network - Cyber Squirrel 1 | Semgrep
SPCoulson @spcoulson.bsky.social Ranter of things - A lot of tech posting, reposting with a smattering of gifs and cheeky fun.
I was @SPCoulson on Twitter
I am occasionally wrong.
#HiddenText
bit.ly/HiddenText
Mainly post on LinkedIn though...
https://www.linkedin.com/in/stuartcoulson/
kljunowsky @kljunowsky.bsky.social Hacker | Offensive Security | Red Teaming
github.com/kljunowsky
Lea Kissner @leak.bsky.social Security, privacy, respect. Was the Twitter CISO until it was terrible. Now LinkedIn CISO. they/them
wendy knox everette @wendyck.bsky.social Startup CISO. BSidesLV Lockpick. Hacker lawyer. Amzn & Google alum, USCG wife, Wellesley, GMU Law. IAAL but IANYL.
Adam J O’Donnell @adamjodonnell.bsky.social Deputy CISO @ Stripe. I like art. cDc ❤️🫵
gattaca @gattaca.bsky.social Grump, keynote, breaker of things, dad, podcaster, creator of (-:|3, OG, raconteur, gentleman spy, investor, whisky distillery owner
Emilio Escobar @eaescob.bsky.social CISO, investor, overall nerd, and wordle addict. Passionate about all tech, especially for tech that breaks the mold. https://emilio.blog
Adam Arellano 👩🏼🎤🧚🏼♂️🧜🏼♀️🏳️🌈 @adamarellano.bsky.social CyberQueer. Former Marine. Current Mexican and American. DEI Warrior. He/They.
Thoughts = Mine 🇲🇽🏳️🌈🇺🇸
Mike Johnson @mikevj.bsky.social Security geek, car geek, offroading geek
Geoff Belknap @geoffbelknap.bsky.social Professional Security Person | NatSec, Cyber, and InfoSec Tweets | WILL NOT ATTEND YOUR WEBINAR | “Slow, awkward, but authentic.” | Native Buffalonian | He / Him
Cory Scott @coryscott.bsky.social Security guy. Previously at Confluent, Google, LinkedIn, Matasano, and @stake.
Sean Cassidy @seancassidy.me 
void @void92.bsky.social 
Tijme Gommers @tijme.bsky.social Offensive Security at ABN AMRO Bank 🏦. Red Teaming, Malware Development & Reverse Engineering 🐙. Cyber Cyber Cyber ⚡️.
Ian Reynolds @ianreynolds.bsky.social :: Security Operating , Incident Responding, Forensicating, head-scratching, Plan C,D, and E providing, climbing, biking, wandering, {pick-a-colour}-teamer :: SANS Instructor ::
Barbara Schachner @barschachner.bsky.social Director Product Security @Dynatrace. Previous Security Architect, Pentester and Red Team Lead. Tweets are my own.
Talking about security, leadership, politics and human rights. 
@albinowax.bsky.social @albinowax.bsky.social 
Scott Helme @scotthelme.bsky.social Hi, I'm Scott Helme, a Security Researcher, Entrepreneur and International Speaker. I'm the creator of Report URI and Security Headers, and I deliver world renowned training on Hacking and Encryption.
https://scotthelme.co.uk
vortex @vortex.au I do offensive security things on the internet
Liam @leesoh.bsky.social 
Andrew Martin ⚡☸️ @sublimi.no Hacker // CEO https://controlplane.io 🌐 @controlplane.io | Cloud Native Security | CISO openuk.uk | AI sec https://finos.org/ | Hacking Kubernetes https://oreilly.com/ | Ex https://tag-security.cncf.io/ & https://sans.org/ | Ex-X @sublimino
shenetworks @shenet.works Networking • Hacking • Hacking Networks (she/her)
shenet.works
Ray [REDACTED] @rayredacted.com Past: Host of "Tribe of Hackers"; Assoc. Producer "Darknet Diaries."
Current: Cybersecurity researcher and executive. Also, father of the fastest climber who has ever lived. Seriously.
Warning: I talk about my son ALOT
“Ut scandis, alios subleva.”
Cyber Detective @cybdetective.bsky.social Every day I write about #osint (Open Source Intelligence) tools and techniques. Also little bit about forensics and other cybersecurity related themes
({({(Null Operator)})}) @null0perat0r.bsky.social | 🔐 appsec | 🤓 CTO | ✨ indy hacker | 🎛️ modular synth | 🪳 coder | 🏕️ camping
Developer of Faction: an open source pentesting framework.
https://github.com/factionsecurity/faction
https://bsky.app/profile/factionsecurity.com
Bee 🐝 @securibee.bsky.social Helping you hack a life you love.
💌 https://www.hivefive.community/
thomas🌦️ @zemn.me https://fed.brid.gy/bsky/zemn.me teaching computers to kiss @openai
ha3ks @ha3ks.com Cyber Security Engineer | SOC Team | Half a dozen Certifications in a Trench Coat
Blog: www.ha3ks.com
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
@fransrosen.bsky.social @fransrosen.bsky.social 
erbbysam @erbbysam.bsky.social Software security, cryptography etc
Julien | MrTuxracer @mrtuxracer.bsky.social CEO @rcesecurity.com | Full-time #BugBounty | @hacker0x01.bsky.social H1-Elite | $1,500,000 Overall Bounties | ❤️ IDA Pro | Mobile Hacker
Corb3nik @atvh.dev Co-Founder @caido.io | Security Enthusiast | CTF Fanatic | Bug Bounty Hunter
Alfred Berg @berg.hf.ax security enthusiast | space | F1 | bikes
pwn @pwnfunction.bsky.social 
Tom Anthony @tomanthony.bsky.social Web dev since 1998. Bug bounty & security enthusiast. PhD in AI. CTO at SearchPilot - data driven SEO.
https://www.tomanthony.co.uk
dmnk @dmnk.bsky.social 【ＤΞＣＯＭＰＩＬΞ ＮΣＶΞＲ】
Android Red Team @google
Fuzzing @aflplusplus.bsky.social
CTF @enoflag
(opinions my own)
Matt Johansen @mattjay.com Friendly neighborhood cybersecurity guy | expect infosec news, appsec, cloud, dfir. | Long Island elder emo in ATX.
vulnu.com <- sign up for my weekly cybersecurity newsletter
internet freds 🦇☠️💾✨️ @esquiring.bsky.social 21st century digital attorney. cybersecurity & data counsel, privacy & compliance, FOSS, sometimes litigation; IAALBNTTOLAACNYL (I am a lawyer but not that type of lawyer and almost certainly not your lawyer)
~~☆~~
Nick Dunn @n1ckdunn.bsky.social Hacking and offensive security. Opinions on hacking/offensive security, technology, science and sci-fi. Lover of really new technology and really old technology.
T1D.
Views are mine but may coincide with yours.
DiscoApe Sports @discoape.com 📷 STL Sports Photography
⚽ High School | College | Pro
Precision in Chaos. Beauty in Motion.
Galleries & Coverage @ discoape.com
rs @rslovesbugs.bsky.social interested in anything related to computer security - https://github.com/rs-loves-bugs/xsshunter
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
0xc130d @0xc130d.bsky.social Pentester/Red Team Engineer, sometimes researcher
Stephen Tomkinson @neonbunny9.bsky.social Red Team Operator @ CrowdStrike
Joe Desimone @jdez.bsky.social Tech Lead, Elastic Security
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
Scoubi @scoubi.bsky.social Infosec, Detection Engineering, Threat Research, Threat Hunting, OffSec, Conference Organizer.
💥 leonjza @leonjza.bsky.social [ 'cto @sensepost.com', '@orangecyberdef', 'caffeine fueled', '(╯°□°)╯︵ ┻━┻', 'security guy', 'metalhead', 'i saw your password', 'KOOBo+KXleKAv+KXlSnjgaM=' ]
0xcsandker @0xcsandker.bsky.social Security enthusiast, likes Windows internals, AD & Azure.
Blogging at: https://csandker.io
David (DWIZZZLE) Weston @dwizzzle.bsky.social Corporate Vice President, OS Security and Enterprise @Microsoft
Duane Michael @subat0mik.bsky.social Adversary Simulation Operator, Researcher, Teacher, and Leader @SpecterOps
Alvaro Muñoz @pwntester.bsky.social Security Researcher with @GHSecurityLab. CTF #int3pids. Opinions here are mine!
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
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
Ross Wolf @rw-access.dev Engineer at Sublime Security, tinkerer, student of all things nerdy
https://rw-access.dev
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
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)
vx-underground @vxundg-ported.bsky.social Ported vx-underground from twitter.
vx-staff: if you want me to take it down, pm me
i'm not using to impersonate you!
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
Black Hills Information Security @bhinfosecurity.bsky.social Specializing in pen testing, red teaming, and Active SOC. We share our knowledge through blogs, webcasts, open-source tools, and Backdoors & Breaches game.
blackhillsinfosec.com & poweredbybhis.com
Troy Hunt @troyhunt.com Founder & CEO of @haveibeenpwned.com, the most trusted name in data breach intelligence. Speaker, blogger, Microsoft Regional Director. Gold Coast, Australia.
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Lystena @lystena.bsky.social team red -> team blue
connoisseur of "how hard is it really?" consequences 
ᴅᴀɴɪᴇʟ ᴍɪᴇꜱꜱʟᴇʀ @danielmiessler.bsky.social AI / Security Researcher and Entrepreneur.
Founder/CEO of Unsupervised Learning.
Building AI that upgrades humans.
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
0xdf @0xdf.bsky.social Principal Training Architect @ HackTheBox
CTF Addict
"Potentially a legit researcher"
he/him
Website: https://0xdf.gitlab.io/
YouTube: https://www.youtube.com/c/0xdf0xdf
Twitter: 0xdf_
Discord: 0xdf
Mastadon: 0xdf@infosec.exchange
Mitch @g0dmode.bsky.social Hacker, Red Teamer @ Cyndicate Labs
Teri Radichel @teriradichel.bsky.social 2nd Sight Lab. Cloud, AI Assisted Pentesting. Security and Technology Research. AWS Security Hero . Author on Amazon. . Burp Champion. Former IANS, SANS faculty. GSE. Masters Software & Infosec.
Humphr3y_H3lld0gg$ @lordofthenazgul.bsky.social Interests: red teaming, dev, threat research, sports, lifting, malware research/RE
Red Teamer, former Threat Intel, former MDR, former Network Engineer, former Geoint/Imint
Megan @cybertricoteuse.bsky.social I’m not here, this isn’t happening.
Security guru, yoga instructor, bi-stitchual. Spends too much time on the NADC website looking at campaign finance data.
Joseph Nyleen @joeknowscyber.bsky.social IT Director. Non-Profits, InfoSec, Blue Team, My opinions. DC541. Handle Is Ironic. Willing to be wrong. He/Him.
Carlos Perez @thedarkoperator.bsky.social - Cybersecurity since 1998
- Information Security jack of all trades
- Hacker
https://www.darkoperator.com
Alex Lanstein @lanstein.bsky.social threaty threats -- helping build research workflows into a soc product, but I don't speak for them on this acct. pretty good at bash scripts and strings. disclosures on my linkedin below
https://www.linkedin.com/in/alexlanstein/
Chris Krebs @thekrebscycle.bsky.social Aka @c_c_krebs over there 
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
Eric Johnson @ejohn20.bsky.social Cloud, code, security automation, boating, biking, beer, and bourbon.
https://pumasecurity.io
Jorge Orchilles @jorgeorchilles.bsky.social SANS Principal Instructor & Author #SEC565 | #RedTeam | #PurpleTeam | #PenTest | #C2Matrix Creator | ATT&CK & Atomic Red Team Contributor | Published Author
Jeff McJunkin @jeffmcjunkin.bsky.social IT generalist with an infosec slant. Testing out the new hotness over here.
Lenny Zeltser @lennyzeltser.com Builder of security products and programs. Teacher of those who run them.
https://zeltser.com
Mike Murr @mikemurr.bsky.social Malware analysis, behavior consultant, software dev.
SANS Instructor: FOR610, FOR710, SEC573
Contact: https://socialexploits.com/contact
Conrad @ericconrad.com SANS Fellow, CTO of Backshore Communications, GIAC GSE #13, SABR member, golden age arcade restorer. Peaks Island, Maine
Jay Beale @neutrino.bsky.social @InGuardians CEO, Bustakube, Peirates, BastilleLinux, #kubernetes @BlackHatEvents Trainer,#neurodivergent fam, he/him, jaybeale@infosec.exchange
tomchop @tomchop.me Cybersecurity nerd; #DFIR @ Google by day; FOSS, threat intel and malware analysis by night. Investigator, coder, terrible sense of humor.
https://yeti-platform.io and more (github.com/tomchop)
views are my own • he/him • tomchop.me