Bruno Maçães @brunomacaes.bsky.social Author Dawn of Eurasia (2018) Belt and Road (2019) History Has Begun (2020) Geopolitics for the End Time (2021) and forthcoming Masters of the Metaverse
William Dalrymple @willdalrymple.bsky.social Scottish historian & art historian; @EmpirePodUK.bsky.social podcaster & Jaipur Lit Fest co-director. Visiting Fellow at All Souls, Oxford. Writes the occasional book.
Ollie Whitehouse @ollieatnowhere.bsky.social CTO at the UK's National Cyber Security Center 
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.
argp @argp.bsky.social Hacker. Ascetic. Phrack author. The most technical boy in town.
Andrew Whalley @arw.me An Englishman in San Francisco. Director of Security for Google Chrome.
Amanda Walker @aw90.bsky.social security & privacy geek by day, decorative artist by night.
Not interested in cryptocurrency or gofundme scams, sorry.
Natalie Silvanovich @natashenka.bsky.social Google Project Zero
Tod Beardsley @todb.hugesuccess.org #InfoSec person. KT0DBK is my callsign. IT guy for @clairereynoldsforcongress.org
I post more often on https://infosec.exchange/@todb, bridged here as @todb2.hugesuccess.org and turns out, is much more #infosec than #txpol political. Follow both!
Patrick Gray @patrick.risky.biz https://risky.biz/
SadProcessor @sadprocessor.bsky.social Purple PowerShell & Hazy Windows.
Ghost Dog Whisperer.
BloodHound Operator.
Synacktiv @synacktiv.com Offensive security company. Dojo of many ninjas. Red teaming, reverse engineering, vuln research, dev of security tools and incident response.
Jeremy Long @ctxt.bsky.social Builder, infosec, SCA and SAST enthusiast, blue team.
Founder of OWASP dependency-check.
https://github.com/sponsors/jeremylong
Louis Nyffenegger @snyff.pentesterlab.com Founder/CEO/Trainer/Researcher/CVE archeologist
@PentesterLab. Security engineer. Bugs are my own, not of my employer...
@albinowax.bsky.social @albinowax.bsky.social 
Koto @kkotowicz.bsky.social Security ninja wannabe / board game geek / photon catcher
Hans-Martin Münch @h0ng10.bsky.social CEO at MOGWAI LABS, part time CTF player and bboy
Peter Stöckli @ulldma.bsky.social Security Researcher and Software Engineer at GitHub Security Lab
Matthias Kaiser @matthiaskaiser.bsky.social Vulnerability Researcher. 0xACED. Ex-Apple. Posts are my own.
Frycos @frycos.bsky.social Private account! Red teamer @codewhitesec. @frycos@infosec.exchange @frycos@X
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.
Joo N/A @joohoi.bsky.social Hacks for beer. FOSS, infosec and privacy. Chaotic good.
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
Michael Skelton @codingo.com VP of Security Operations at Bugcrowd, Security Content @ http://youtube.com/codingo, tools @ http://github.com/codingo. SecTalks and BSides Gold Coast co-organizer - He/Him
Filippo Valsorda @filippo.abyssdomain.expert @geomys.org founder / RC F'13, F2'17
Cryptogopher / Go cryptography maintainer
https://filippo.io / https://github.com/FiloSottile
https://mkcert.dev / https://age-encryption.org
https://sunlight.dev / https://filippo.io/newsletter
Amitai Cohen🎗️🤟 @amitaico.bsky.social personal website @ cloudcurio.us ✦ researching @ Wiz Security (threats.wiz.io) 🐞 maintaining @ cloudvulndb.org 🎙️ podcasting @ cryingoutcloud.io 🗺️ pivoting @ Pivot Atlas (gopivot.ing)
PentesterLab @pentesterlab.com We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!
XBOW @xbow.com Bringing AI to offensive security by autonomously finding and exploiting web vulnerabilities. https://xbow.com/- N Nico Waisman @nicowaisman.bsky.social CISO @Lyft - Former Binary entomologist - Opinions are my own.
Brendan Dolan-Gavitt @moyix.net AI researcher at XBOW. Security, RE, ML. PGP http://keybase.io/moyix/
Alvaro Muñoz @pwntester.bsky.social Security Researcher with @GHSecurityLab. CTF #int3pids. Opinions here are mine!
d4d @zakfedotkin.bsky.social Zak Fedotkin
All thought are mine and mine alone
Henk van Ess @henkvaness.bsky.social #osint #ai
leHACK @le-hack.bsky.social 🗓️ #leHACK 2026 // June 26-27, 2026
🎟️Tickets : https://www.billetweb.fr/lehack-2026-brave-new-world
📍 https://www.cite-sciences.fr
Virus Bulletin @virusbtn.bsky.social Security information portal, testing and certification body.
Organisers of the annual Virus Bulletin conference.
I Am Devloper @iamdevloper.bsky.social printer fixer
Lex Fridman @lexfridman.bsky.social Host of Lex Fridman Podcast.
Interested in robots and humans.
Andrew D. Huberman, Ph.D. @hubermanlab.com Professor of Neurobiology & Ophthalmology at Stanford Medicine • Host of the Huberman Lab podcast • Focused on science & health research & public education
Terrible Maps @terriblemapshq.bsky.social The home of terrible maps with a pinch of humour
terriblemaps@gmail.com
@mikko @mikko.bsky.social Fighting malicious use of technology.
Debugger @debugger.bsky.social I’m a problem solver with a passion for hardcore troubleshooting. If you think it can’t be fixed, that’s exactly when I get interested.
Binary Ninja @binary.ninja https://binary.ninja/
Made with ❤️ by https://vector35.com/
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.
OWASP® Foundation @owasp.org We improve the security of apps with community-led open source projects, 260 local chapters, and tens of thousands of members worldwide. Famous for OWASP Top 10
Silent Signal @silentsignal.bsky.social Professional Ethical Hacking Services
https://blog.silentsignal.eu
Foxes In Love @foxes-in-love.bsky.social The official bluesky account of Foxes In Love!
raptor @raptor.infosec.exchange.ap.brid.gy When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.
🌉 bridged from ⁂ https://infosec.exchange/@raptor, follow @ap.brid.gy to interact
Microsoft Threat Intelligence @threatintel.microsoft.com We are Microsoft's global network of security experts. Follow for security research and threat intelligence. https://aka.ms/threatintelblog
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Bill Demirkapi @billdemirkapi.bsky.social solving security at scale. reserved for future use.
HD Moore @hdm.io runZero & Metasploit
spencer @bsky.ethicalthreat.com 🛠️ Former Sysadmin, now Pentester | Microsoft MVP | Helping IT teams make their environment harder to attack
Pentesting -> SecurIT360
Podcast -> CyberThreatPOV
Active Directory Security Resources for IT Admins 👇
https://go.spenceralessi.com/adsecurity
TrustedSec @trustedsec.com End-to-end Cybersecurity consulting team leading the industry, supporting organizations, and giving back. #HackThePlanet
https://trustedsec.com/
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
X-Force @xforce.bsky.social IBM X-Force
Dr Nestori Syynimaa @drazuread.com Principal Identity Security Researcher @Microsoft. Ex-Secureworks (PhD, MSc, MEng, CITP, CCSK).
And yes, opinions are my own ;)
netbiosX @netbiosx.bsky.social Purple Team
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
bohops @bohops.bsky.social Mostly on X
Brett Hawkins @h4wkst3r.bsky.social Adversary Services @xforce
https://h4wkst3r.github.io
Emilien Socchi @emiliensocchi.bsky.social Passionate security researcher and professional #EntraID #Azure #GCP #Kubernetes | Sharing technical tips and ideas
📍Oslo, Norway 🔗 emiliensocchi.io
alden @re.wtf malware enjoyer • macOS security
https://alden.io
Ryan Newington @ryannewington.com Microsoft MVP (Security), Identity Architect, .NET Developer and Windows Platform Specialist. Founder of @lithnet_io.
Mastodon: @ryannewington@infosec.exchange
Twitter: @RyanLNewington
ϻг_ϻε @steven.srcincite.io Hermetic Initiate. Exploring conscience and the nature of reality. I also hack things.
Assetnote @assetnote.io True Attack Surface Management - https://assetnote.io
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
Mathias Karlsson @avlidienbrunn.se Web security fiddler. Bug bounty bastard. Sometimes I cut shapes.
Eduardo Vela @sirdarckcat.bsky.social 
Robin @digi.ninja Hacker, coder, climber, runner, triathlete.
Always learning.
Co-flounder of SteelCon
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 🥰
Soroush Dalili 🍏🍐 @irsdl.bsky.social Hacker (ethical), web appsec specialist, trainer, tools builder & apps breaker, X: @irsdl
https://secproject.com/
https://soroush.me/
https://burpsuite.ninja/
Lukas Weichselbaum @webappsec.dev Leading Google's web security team.
Passionate about web security and making secure-by-default web development the norm. Contributed to web platfom security features like CSP, Fetch Metadata, COOP and Trusted Types.
Adriana Porter Felt @apf.bsky.social I like writing silly skeets, but that doesn't pay so I also make Google Chrome. mamá, Eng Director, volunteer at Second Harvest. 🇺🇲🇨🇷
Twitter: @__apf__
Web Security Academy @websecacademy.bsky.social Free web security training from PortSwigger.
Michele Spagnuolo @miki.it 💼: Staff Information Security Engineer at Google. 🛠️: Rosetta Flash, BitIodine. 💛: web security, ⟠, ₿, finance. Data is the most dangerous form of opinion.
Simon Bennetts @psiinon.bsky.social ZAP Project Lead
garethr @garethr.bsky.social VP Product @snyksec. @openpolicyagent Conftest maintainer. Developer, designer, product. Open source geek. Devops Weekly. @gdsteam alum. he/him.
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Daniel Cuthbert @dcuthbert.bsky.social Ageing hacker, long time documentary photographer. Black Hat Review board. Now sitting on numerous government cyber security boards so I guess that means I’ve grown up right?
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
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
zseano @zseano.bsky.social @zseano
ᴅᴀɴɪᴇʟ ᴍɪᴇꜱꜱʟᴇʀ @danielmiessler.bsky.social AI / Security Researcher and Entrepreneur.
Founder/CEO of Unsupervised Learning.
Building AI that upgrades humans.
vortex @vortex.au I do offensive security things on the internet
Alex Chapman @ajxchapman.bsky.social Full Time #BugBounty Vulnerability Researcher
https://blog.ajxchapman.com
STÖK @stokfredrik.bsky.social Hacker / Creative
Mischief & GOOD VIBES ONLY
rs @rslovesbugs.bsky.social interested in anything related to computer security - https://github.com/rs-loves-bugs/xsshunter
TomNomNom @tomnomnom.com Computer booper and food enthusiast. He/him.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Dafydd Stuttard @dafyddstuttard.bsky.social Founder and Chief Swig at PortSwigger. Creator of Burp Suite and the Web Security Academy. Author of The Web Application Hacker's Handbook.
Nicolas Grégoire @agarri.fr Web hacker 😈
Burp Suite Pro trainer 👨🏫
Maintainer of @mastering-burp.agarri.fr 🛠️
Gareth Heyes @garethheyes.co.uk Web security researcher at PortSwigger. Author of JavaScript for Hackers, Shazzer and Hackvertor.
https://javascriptforhackers.co.uk/
https://garethheyes.co.uk/
Masato Kinugawa @masatokinugawa.bsky.social '"><>ma<s>ato
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/
Sam Curry @zlz.bsky.social 
@fransrosen.bsky.social @fransrosen.bsky.social