maitai @maitai.bsky.social BSc Computer Science Engineering | 24 | Trying to find my way ~ 🍭
http://blig.one
Bugcrowd @bugcrowd.com The leading provider of crowdsourced cybersecurity solutions purpose-built to secure the digitally connected world...Unleash Ingenuity™
CaidoIO @caido.io We help security professionals and enthusiasts audit web applications with efficiency and ease
https://caido.io
Leo @bumhol.es Hacker Success Manager @HackerOne
#HackForGood
(Opinions expressed are solely my own and do not express the views or opinions of my employer)
Sam Curry @zlz.bsky.social 
renniepak @renniepak.nl Self-XSS connoisseur. Elite Hacker. MVH H11337UPBash. One-Percent Man. Creator of CSPBypass.com. (he/him)
Corb3nik @atvh.dev Co-Founder @caido.io | Security Enthusiast | CTF Fanatic | Bug Bounty Hunter
Adam Langley @buildhacksecure.bsky.social Fullstack dev & Hacker, training ethical hackers how to hack & web devs to secure their apps! CTO at https://hackinghub.io and Director at https://bsidesexeter.co.uk
Johan Carlsson @joaxcar.bsky.social Full time bug bounty hunter. Look for ”joaxcar” on other platforms
Mathias Karlsson @avlidienbrunn.se Web security fiddler. Bug bounty bastard. Sometimes I cut shapes.
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
shenetworks @shenet.works Networking • Hacking • Hacking Networks (she/her)
shenet.works
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Jakoby @iamjakoby.bsky.social 
Louis Nyffenegger @snyff.pentesterlab.com Founder/CEO/Trainer/Researcher/CVE archeologist
@PentesterLab. Security engineer. Bugs are my own, not of my employer...
Corben Leo @hacking.bsky.social I hack stuff (legally). | co-founder boring.co
Twitter: https://twitter.com/hacker_
Talking Sasquach @talkingsasquach.bsky.social An actual Talking Sasquach teaching tech stuff to skids and kids of all ages! Check me out on YouTube!! https://www.youtube.com/@TalkingSasquach
@fransrosen.bsky.social @fransrosen.bsky.social 
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.
ddǝɐuɐp @danaepp.bsky.social I help builders and breakers of code learn to find security vulnerabilities in their apps and APIs.
😈 Join 10K appsec hackers @ https://apihacker.blog/subscribe
cje @cje.io founder @bugcrowd && co-founder @disclose_io || hacker, entrepreneur, executive, advisor || عصا موسى || #w00w00
Assetnote @assetnote.io True Attack Surface Management - https://assetnote.io
Hakupiku @hakupiku.bsky.social Ex-developer and pentester |
Full-time security researcher and bug bounty hunter |
CTF player Kalmarunionen|
Researcher for @ctbbpodcast.bsky.social lab
My opinions are mine and mine alone.
CryptoCat @cryptocat.me Security Researcher @rapid7.com 😈
Hacking Content @ https://yt.cryptocat.me 💜
@ctbbpodcast.bsky.social @ctbbpodcast.bsky.social 
@nahamsec.bsky.social @nahamsec.bsky.social 
Ciarán Cotter (monke) @monke.ie Irish web hacker. Founder @ Simian Security. Newsletter every week at https://monke.ie. Reach out at https://simiansecurity.com 🇮🇪/🇯🇵
Rachel Tobac @racheltobac.bsky.social Hacker & CEO @SocialProofSec security awareness/social engineering training, videos, talks | 3X @DEFCON🥈 | Ex Chair @WISPorg | Ex @CISAgov Technical Advisory Council under Director Jen Easterly
Accidental CISO @accidentalciso.net I accidentally became the CISO. I didn't want this job, but the job chose me. I'm scared, and I want to go home.
https://www.accidentalciso.net
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
Wild West Hackin' Fest @wildwesthackinfest.bsky.social Join us for Wild West Hackin' Fest - Deadwood 2026! Con: Oct. 7-9, 2026, Pre-Con Training: Oct. 6-7, 2026
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
404 Media @404media.co it's a website (and a podcast, and a newsletter) about humans and technology, made by four journalists you might already know. like and subscribe: 404media.co
Alethe @alethe.bsky.social ‘Uh-Lee-th’ | Bishop Fox 🦊 Red Team | DEF CON Goon & Black Badge Hall of Fame | DEF CON Social Engineering CTF Winner 2019 | Physical Pentester | IVR Pentester | IR Tabletop King 👑
Safa 🇿🇦 in NorCal 🇺🇸 - Fish 🐠 Nerd - Jeep Girl
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Gareth Heyes @garethheyes.co.uk Web security researcher at PortSwigger. Author of JavaScript for Hackers, Shazzer and Hackvertor.
https://garethheyes.co.uk/#latestBook
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
TomNomNom @tomnomnom.com Computer booper and food enthusiast. He/him.
Joel Margolis (teknogeek) @teknogeek.io hacker
STÖK @stokfredrik.bsky.social Hacker / Creative
Mischief & GOOD VIBES ONLY
Alex Chapman @ajxchapman.bsky.social Full Time #BugBounty Vulnerability Researcher
https://blog.ajxchapman.com
ᴅᴀɴɪᴇʟ ᴍɪᴇꜱꜱʟᴇʀ @danielmiessler.bsky.social AI / Security Researcher and Entrepreneur.
Founder/CEO of Unsupervised Learning.
Building AI that upgrades humans.
zseano @zseano.bsky.social @zseano
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
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
Phillip Wylie @phillipwylie.bsky.social Offensive Security Professional | Phillip Wylie Show Podcast Host | The Pentester Blueprint coauthor | TribeOfHackers Red Team | https://linktr.ee/phillipwylie
Web Security Academy @websecacademy.bsky.social Free web security training from PortSwigger.
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
Justin Gardner @rhynorater.bsky.social Christian | Full-time Bug Bounty Hunter | Host @ctbbpodcast.bsky.social | Advisor @caido.io | 3x LHE MVH | 🗣️ English, 日本語
Orange Tsai @orange.tw This is 🍊
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
Katie Paxton-Fear @insider.phd Dr, apparently. Security Adovcate @semgrep & Hacker. #BugBounty hunter & #infosec YouTuber. APIs & Interlinked OffSec, PhD in AI+Sec @hacknotcrime. she/her
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)
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
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
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 🥰
David Bombal @davidbombal.bsky.social YouTube: http://youtube.com/davidbombal
Discord: http://discord.davidbombal.com
Website: http://davidbombal.com
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
Joseph Cox @josephcox.bsky.social Hacking/crime/privacy journalist. Author of DARK WIRE, buy here: https://www.hachettebookgroup.com/titles/joseph-cox/dark-wire/9781541702691/#preorder Co-founder of 404 Media. Signal: joseph.404 Email: joseph@404media.co
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
OSINT Techniques @osinttechniques.bsky.social https://www.forensicosint.com/
Dutch_OsintGuy @dutchosintguy.bsky.social Dutch guy with Open Source Intelligence & Analysis skills • OSINT • Certified Instructor @SANSInstitute • SVP of Engineering& Chief Innovator @ shadowdragon.io
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
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
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
🔐 Mishaal Khan @mishaalkhan.bsky.social 🔥 cybersecurity | privacy | osint | speaker | author |
www.MishaalKhan.com
Ben Corbitt @btcor.bsky.social UAB alum. Hacker. Gamer. Sports fan. Nerd.
🎬 https://www.youtube.com/@UnderSecured
💻 https://corsecure.blog
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app