Mat Rollings @stealthcopter.bsky.social Bug bounty hunter, AppSec engineer and CTF player.
Developer of PortDroid, deepce, Nexus Revamped and some other junk
sudi @sudhanshur705.bsky.social Remember, whatever happens... There's always a vulnerability
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
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
cje @cje.io founder @bugcrowd && co-founder @disclose_io || hacker, entrepreneur, executive, advisor || عصا موسى || #w00w00
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
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
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/
zseano @zseano.bsky.social @zseano
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
STÖK @stokfredrik.bsky.social Hacker / Creative
Mischief & GOOD VIBES ONLY
Corben Leo @hacking.bsky.social I hack stuff (legally). | co-founder boring.co
Twitter: https://twitter.com/hacker_
Joel Margolis (teknogeek) @teknogeek.io hacker
CaidoIO @caido.io We help security professionals and enthusiasts audit web applications with efficiency and ease
https://caido.io
d3fp4r4m @defparam.bsky.social Security Researcher
@defparam@infosec.exchange 
renniepak @renniepak.nl Self-XSS connoisseur. Elite Hacker. MVH H11337UPBash. One-Percent Man. Creator of CSPBypass.com. (he/him)
TomNomNom @tomnomnom.com Computer booper and food enthusiast. He/him.
HackerOne @hacker0x01.bsky.social The Only official HackerOne bsky account.
Peace of mind from security's greatest minds.
#HackForGood
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
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 🥰
Bitquark @bitquark.io 🥷 British hacker and coder
✨ Space and language nerd
🎩 Black Hat EU review board
🐈 Neurodivergent. Poly. He/him.
🛠️ https://github.com/bitquark
d0nut @d0nut.dev 🦀 Rust + Security 🔑
jstnkndy @jstnkndy.bsky.social Infosec professional, beverage snob, and fantasy book consumer. Vice President @ Atredis Partners. Forever terrified of Kithicor.
Sam Curry @zlz.bsky.social 
Phillip Wylie @phillipwylie.bsky.social Offensive Security Professional | Phillip Wylie Show Podcast Host | The Pentester Blueprint coauthor | TribeOfHackers Red Team | https://linktr.ee/phillipwylie
Random Robbie @what-security.co.uk #infosec | #exploiter | #asm | fox | #LFC | scanner of the internet | #wordpress exploiter | #greynoise lover. | #Bugbounty hunter | Northerner | #UK
ᴅᴀɴɪᴇʟ ᴍɪᴇꜱꜱʟᴇʀ @danielmiessler.bsky.social AI / Security Researcher and Entrepreneur.
Founder/CEO of Unsupervised Learning.
Building AI that upgrades humans.
Lauritz @lauritz-holtmann.de IT-Security Researcher, Pentester and Bug Hunter. Passionate about 💻, 🤽♂️, ⚜️, 🎸 and ⚽ #meinVfL
#Kaeferjaeger + H1 Ambassador
🏠 https://security.lauritz-holtmann.de
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Johan Carlsson @joaxcar.bsky.social Full time bug bounty hunter. Look for ”joaxcar” on other platforms
AnubisSec @anubissec.bsky.social Logging into things I shouldn't.
Red Team Lead @ NVIDIA
b1ack0wl @b1ack0wl.com 0day Researcher @ ████████████ / Baker / 0wl
// I post random things on here
Louis Nyffenegger @snyff.pentesterlab.com Founder/CEO/Trainer/Researcher/CVE archeologist
@PentesterLab. Security engineer. Bugs are my own, not of my employer...
Corb3nik @atvh.dev Co-Founder @caido.io | Security Enthusiast | CTF Fanatic | Bug Bounty Hunter
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
/ XNL -н4cĸ3r @xnl-h4ck3r.bsky.social Aspiring Bug Bounty Hunter & dev of tools: GAP, xnLinkFinder & waymore, featured in "Bug Hunter’s Methodology: Application Analysis v1" by JHaddix 🤘
RTFM🧐
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
@fransrosen.bsky.social @fransrosen.bsky.social 
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Matthias Kaiser @matthiaskaiser.bsky.social Vulnerability Researcher. 0xACED. Ex-Apple. Posts are my own.
TommyBoy @tommyboyhacking.bsky.social Hack/Planets
https://tommyboyhacking.github.io/tommylinkin/
JR0ch17 @jr0ch17.bsky.social 
Patrik Fehrenbach @itsecurityguard.bsky.social rɪsˈpɒnsəbl dɪsˈkləʊʒə
https://wss.sh
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
0xacb @0xacb.com Hacker grinding for L1gh7 and Fr33dφm, straight outta the cosmic realm.
Co-founder @ethiack.com
https://0xacb.com
Mathias Karlsson @avlidienbrunn.se Web security fiddler. Bug bounty bastard. Sometimes I cut shapes.
Matan Berson @matanber.com Hacker and bug bounty hunter mostly focusing on client-side security.
h1-702 Vigilante, h1-65 Eliminator, AWC23 Best New Hacker
Bug Bounty Reports Explained @gregxsunday.bsky.social 
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.
Orange Tsai @orange.tw This is 🍊
BitK @handle.invalid 
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
Yoeri Vegt @yoerivegt.com Student | Attempting to Bug Bounty Hunt | Dutch Hackerone Ambassador | Proud Dutchy 🇳🇱
Dream big ⭐
Alex Chapman @ajxchapman.bsky.social Full Time #BugBounty Vulnerability Researcher
https://blog.ajxchapman.com