Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Armand Sarlangue @armandsarlangue.bsky.social Endless search for ART in NATURE
Full time photographer & photo tours guide
Mountain addict & glaciers lover 🏔️📷🧊
Real places only
More about my work at armandsarlangue.com
HD Moore @hdm.io runZero & Metasploit- T @taviso.bsky.social @taviso.bsky.social
@laparisa.bsky.social @laparisa.bsky.social Browser Boss @googlechrome; Security Princess
@google; Project Zero den mom; former @usds; skilled at baking, eating, and hijacking cookies.
4Dgifts @4dgifts.bsky.social culprit %x%x%n%n
Ange @angealbertini.bsky.social Reverse engineer, file formats expert.
Corkami, CPS2Shock, PoC||GTFO, Sha1tered, Magika...
Security engineer @ Google. He/him.
Alex Gantman @againsthimself.bsky.social 
stfn @stfn42.bsky.social Leading Red Teaming @ Google.
Joel Weinberger @metromoxie.bsky.social Security at Lightspark. Formerly Snap Security, Google Chrome Security, UC Berkeley Grad Student, Sun Microsystems Software Engineer
metromoxie @ Twitter
Matthew Riley @matt.dev security eng manager at Google • he/him
Mike Sinno @darklordofsys.bsky.social Director, Detection & Response
@Google. #DFIR #PrivacyResponse #InsiderRisk
Opinions expressed are my own.
Hackaday @hackadayofficial.bsky.social 🔥 Engineering knowledge exchange: http://hackaday.com
☠️ Get featured: tips at hackaday dot com
📒 Learn: http://hackaday.io/u
Aris Adamantiadis @aris.badcode.be Hacker, security researcher and freelance. libssh founder, iCON NGO co-founder, CTF player, amateur astronomer, astrophotographe, dopamine addict. EN/FR
jeremyz @jeremyz.bsky.social Security Consulting: https://mercurial.systems
AI minimalist. It's just software. Don't get too excited.
Previously: Google/Alphabet
he/him
Advanced Fuzzing League @aflplusplus.bsky.social We want to make fuzzing better and better
Follow for updates on AFL++ & LibAFL
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
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 ✨🌈🦄
Emilien Girault @egirault.bsky.social 
Chris Wade @cmw.bsky.social Connecting dots and untying knots. This is my personal account and my opinions are my own. CTO @ Corellium / Producer
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
ANSSI @anssi-fr.bsky.social Compte officiel de l'Agence nationale de la sécurité des systèmes d'information (ANSSI) | Retrouvez les alertes de #cybersécurité sur le compte @cert-fr.bsky.social
face0xff @face.0xff.re vulnerability researcher · reverse engineer · Ⓥ🌱
https://0xff.re/
Bière Sécu Toulouse @bieresecutls.bsky.social Discord : https://discord.gg/yUsTKE4wQ9
ValekoZ @valekoz.bsky.social Ninja reverser at @Synacktiv.com
GrapheneOS @grapheneos.org Open source privacy and security focused mobile OS with Android app compatibility.
https://grapheneos.org/
Quarkslab @quarkslab.bsky.social Securing every bit of your data
https://quarkslab.com
Binary Ninja @binary.ninja https://binary.ninja/
Made with ❤️ by https://vector35.com/
Phrack Zine @phrack.org since 1985
https://phrack.org
Alex Plaskett @alexplaskett.bsky.social Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.
guyru @guyru.bsky.social Vulnerability research, cryptography, FOSS, finance and random stuff.
Leading Cellebrite's iOS research.- A Antonio Zekić @antoniozekic.bsky.social Interested in iOS/macOS internals/security...
stacksmashing @stacksmashing.bsky.social Security researcher with a focus on hardware & firmware. I occasionally publish stuff on YouTube. Co-founder of
hextree.io. Contact: contact@stacksmashing.net
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.- T Major_ToM @tomudoncknn.bsky.social Internet sentinel
Bon Pote @bonpote.com Ecologie | Numérique | Démocratie. Bon Pote est un média indépendant, soutenu à 100% par ses lectrices et lecteurs. Nous soutenir : https://bonpote.com/soutenir
https://bonpote.com/
Pierre M. @b1two.bsky.social @synacktiv
Natalie Silvanovich @natashenka.bsky.social Google Project Zero
The Dustin Childs @dustinchilds.bsky.social Just a simple information security gnome trying to make his way through the universe. Part-time patch wrangler. Tweets are just my opinion and such. Got questions about patches or bug bounties? My DMs are open. Signal: DustinChilds.17
smaury @smaury.bsky.social Co-Founder @shielder.com
CTF Player jbz.team
Cliff Jumping Lover (23mt max so far)
Tim Blazytko @mrphrazer.bsky.social Binary Security Researcher & Trainer
Website: https://synthesis.to
destsrcsize @destsrcsize.bsky.social Professional disassembly enthusiast
Tristan P. @trustnull.bsky.social Hunting pokemons for a living
@xploitbengineer.bsky.social @xploitbengineer.bsky.social 
Compass Security @compass-security.com Penetration Testing, Red Teaming, Incident Response, Managed Detection, Digital Forensics, Security Training, Managed Bug Bounty, Cyber Training Range
MagicMicky @magicmicky.bsky.social 
Clément Berthaux @saaph.bsky.social VR team tech lead @synacktiv
bak @bakbakbak.bsky.social 
biazo @vmcsptr.bsky.social Hyper-V Enjoyer
cybrz @cybrz.bsky.social Master of Disaster @compass-security.com 🔥 for all sorts crises, scada, chunk hacking, electronics, cryptography and cyber all the things.
@ha-kril.bsky.social @ha-kril.bsky.social 
Freddy @freddyb.bsky.social manager/security things for Firefox. love my family, my bike and reading books.
You can also find me on Mastodon as @freddy@security.plumbing, which I consider my primary account.
Homepage: https://frederikbraun.de/
Gabriel Thierry @gabrielthierry.eurosky.social Journaliste, aux manettes de la newsletter cybercrime Pwned | gabrielthierry@protonmail.com https://linktr.ee/gabrielthierry
Aska @flutsunami-is-aska.bsky.social Former RE team lead
@synacktiv - Former @AirbusSecLab lead
Collector of Quote
professional rustacean 🦀🇺🇦🌻😷 @adhsec.bsky.social reverse engineering & vulnerability research, ex MWR Labs, generally bad at computers, memory safe(probably), OS internals/hypervisor/browser research and bug hunting r&d (❤️program/code analysis)🐞🔍 @adhsec on hellsite, they/them, enby, #AuDHD
Izobashi @izobashi.bsky.social Security researcher at the ZDI
Izobashi.info- S @sar5430.bsky.social @sar5430.bsky.social
Geoffrey B @yofbalibump.bsky.social 
JB @jbcayrou.bsky.social Security expert @Synacktiv
Sam Thomas @xorpse.ghost.sh Program Analysis / Reverse Engineering
Website: https://xv.ax
Marco Grassi @marcograssi.bsky.social Full time landscape photographer from Italy 🤌🏻
No AI generated images, just a beautiful planet as playground. 
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
jvoisin @dustri.org Blog feed for https://dustri.org/b
Also available at https://mastodon.social/@jvoisin
Laurent Clévy @lorenzo2472.bsky.social Reverse engineering, files formats and crypto.
https://github.com/lclevy
@cfreal.bsky.social @cfreal.bsky.social 
Alex Matrosov @matrosov.bsky.social 
Andrea Barisani @andreabarisani.bsky.social hacker | tamagopher | https://andrea.bio
crazy hugsy @blah.cat Someone who likes debuggers a bit too much
🇨🇦 • 🇰🇷 • 🇫🇷
ϻг_ϻε @steven.srcincite.io Hermetic Initiate. Exploring conscience and the nature of reality. I also hack things.
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
jduck @jduck.me Continuously learning about computer security through research and development.
Brad Spengler @spender.bsky.social President of @opensrcsec, developer of @grsecurity
Personal account
Karsten @gr4yf0x.bsky.social VR. Can cook a decent Cacio e Pepe. Physicist in a former life.
netspooky @vacci.ne knuck if you buck
https://n0.lol
Michal Melewski @carste1n.bsky.social Security Engineer @ Cloudflare,
ex-Google ISE,
I use bad software and bad machines for the wrong things.
My writing: https://carstein.github.io
pancake @trufae.bsky.social Author of @radareorg, mainly active in the fediverse @pancake@infosec.exchange
Qualys @qualys.bsky.social 
Cedric Pernet @cedricpernet.bsky.social Senior Threat Researcher @ Proofpoint.
Cybercrime / Cyberespionage aficionado.
Has worked in several CSIRTs/CERTs.
Metal & Rock dude, never enough guitars.
Motorcycles fan.
Wrote a book in French language on cyberespionage.
Ex-Law Enforcement Officer
Phil @phil-barr3tt.bsky.social Car wanabee hacker, RF enthusiast & hardware breaker (sparks master)
Mark Dowd @mdowd.bsky.social Internet hacker
David B. - _p0ly_ @pol-y.bsky.social Security expert @Synacktiv
Karion @karion23.bsky.social 
reverseth @reverseth.bsky.social French pentester, but currently traveling around the world.
Passionate about hacking, I also enjoy building things with Rust.
Romain Thomas (@rh0main) @rh0main.bsky.social Security engineer working on Android, reverse-engineering & obfuscation.
https://www.romainthomas.fr/ - https://obfuscator.re/ - https://lief.re
voydstack @voydstack.re VR @ Synacktiv, low level security enthusiast
https://voydstack.re/
myr @myr463.bsky.social Security researcher @Synacktiv.com ⛩️
Areizen @areizen.bsky.social Reverse engineer @synacktiv.com. I appreciate Android related stuff
blackndoor @blackndoor.bsky.social 
angel_killah @angelkillah.bsky.social 
Hexacon @hexacon.bsky.social Offensive security conference in the heart of Paris. 10-11th October 2025
https://www.hexacon.fr/
@ret2systems.bsky.social @ret2systems.bsky.social 
PL 🤘🦇🤘 @phlaul.bsky.social 
matteyeux @matteyeux.bsky.social iOS fun
Pierre Bienaimé @bienai.me 
Nics @nics.eurosky.social 😶🌫️
@r3n1k.bsky.social @r3n1k.bsky.social - H @hypn0s.bsky.social @hypn0s.bsky.social
Ivanlef0u @ivanlef0u.bsky.social ivanlef0u.fr
Mehdi Talbi @mtalbi.bsky.social