ctx @rt2c.bsky.social Just a silly cat, enjoying in the Webverse
hypr @hyprdude.bsky.social vuln researcher+exploit dev | bordeaux enjoyer | friend of all cats | him/he | https://blog.coffinsec.com
Flomb @fl0mb.bsky.social https://blog.flomb.net
https://x.com/flomb_
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
SinSinology @sinsinology.bsky.social Pwn2Own 20{22,23,24,24.5}, i look for 0-Days but i find N-Days & i chase oranges 🍊
https://summoning.team/
Matthias Kaiser @matthiaskaiser.bsky.social Vulnerability Researcher. 0xACED. Ex-Apple. Posts are my own.
Michael Stepankin @artsploit.com Security Researcher at GitHub Security Lab, ex Portswigger.
https://artsploit.blogspot.com/
₦฿₭ @nbk.bsky.social Paw / Pwn / Purr
@nbk_2000
Eduardo Vela @sirdarckcat.bsky.social 
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Stephen Sims @steph3nsims.bsky.social Security Researcher, Musician, SANS Fellow and Offensive Ops Curriculum Lead, Off By One Security, Gray Hat Hacking Author. Berkeley, California
Marc Smeets @marcoverip.bsky.social Does a thing or two with red teaming @ Outflank | part time race and drift car instructor
GitHub Security Lab @securitylab.github.com Securing open source software, together
Assetnote @assetnote.io True Attack Surface Management - https://assetnote.io
Johan Carlsson @joaxcar.bsky.social Full time bug bounty hunter. Look for ”joaxcar” on other platforms
harisec @harisec.bsky.social Interested in web security, bug bounties, machine learning and investing. SolidGoldMagikarp
zseano @zseano.bsky.social @zseano
Alex Chapman @ajxchapman.bsky.social Full Time #BugBounty Vulnerability Researcher
https://blog.ajxchapman.com
Kurt met een stille R @kut-band.bsky.social Kut
Band
Belgische scheldpunk
https://vi.be/platform/Kut
TumpiCon @tumpicon.org IT Security Conference in Turin area (Italy) | 27-28 June 2025
modzero @modzero.bsky.social Breaking stuff since 2011
Molly White @molly.wiki writes citationneeded.news • runs @web3isgoinggreat.com and @influence.citationneeded.news • tech researcher and cryptocurrency industry critic • software engineer • wikipedian
support my work: citationneeded.news/signup
links: mollywhite.net/linktree
💗💜💙
smaury @smaury.bsky.social Co-Founder @shielder.com
CTF Player jbz.team
Cliff Jumping Lover (23mt max so far)
Justin Steven @justinsteven.com 
joern @jrn.bsky.social Still your mom’s favorite hacker!
Peter Stöckli @ulldma.bsky.social Security Researcher and Software Engineer at GitHub Security Lab
William Bowling @vakzz.bsky.social Security Engineer at Zellic, a.k.a vakzz when doing bug bounties and CTFs with Perfect Blue - https://devcraft.io
jstnkndy @jstnkndy.bsky.social Infosec professional, beverage snob, and fantasy book consumer. Vice President @ Atredis Partners. Forever terrified of Kithicor.
Alvaro Muñoz @pwntester.bsky.social Security Researcher with @GHSecurityLab. CTF #int3pids. Opinions here are mine!
Kyle LePrevost @hardcidr.bsky.social Cybersecurity @ CarMax. 
Mathias Karlsson @avlidienbrunn.se Web security fiddler. Bug bounty bastard. Sometimes I cut shapes.
@fransrosen.bsky.social @fransrosen.bsky.social 
renniepak @renniepak.nl Self-XSS connoisseur. Elite Hacker. MVH H11337UPBash. One-Percent Man. Creator of CSPBypass.com. (he/him)
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
Mikhail Shcherbakov @yu5k3.bsky.social Doing security research. For fun and profit...
Luke Jahnke @nastystereo.com Blogging at https://nastystereo.com
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
terjanq @terjanq.me security enthusiast that loves hunting for bugs in the wild. co-founder and player of @justCatTheFish.
infosec at @google. opinions are mine.
From: https://twitter.com/terjanq
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
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
harmj0y @harmj0y.bsky.social Researcher @SpecterOps. Coding towards chaotic good while living on the decision boundary. #dontbanequality
Cliff Fisher @brd.bsky.social Your friendly neighborhood Active Directory expert. Ex-Microsoft. Was @brdpoker on that other site. Also loves poker, board games, watching sports, and spending time with my wife and our fur kiddo. He/him
Andy Robbins @andyrobbins.bsky.social aka wald0
Lukasz Gogolkiewicz @synick.bsky.social cyber guy, advocate for diversity in tech, mentor, adventurer, and woodworker...
Harsh Jaiswal @rootxharsh.bsky.social Vulnerability Research
Orange Tsai @orange.tw This is 🍊
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
Jeremy Kirk @jkirk.bsky.social Okta Threat Intelligence. Personal account. Interests: Cyber threat intelligence, OSINT, data breaches, AI. Formerly intel analysis @ Intel 471. jeremykirk.com
Lily Hay Newman @lhn.bsky.social Security reporter for WIRED Magazine. she/her/my man. Signal +1 (347) 722-1347
Matt Burgess (WIRED) @mattburgess1.bsky.social Security writer @wired.com
Cybercrime, privacy, surveillance, and more.
Signal: mattburgess.20 | Email: matt_burgess@wired.com
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.
Tom Uren @tom.risky.biz Author of the Seriously Risky Business cyber security newsletter
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
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
Kim Zetter @kimzetter.bsky.social Journalist - cyber/natn'l security. Speaker. Georgetown adjunct prof. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon
Signal: KimZ.42
https://www.zetter-zeroday.com
Dominic White @singe.bsky.social Hacker at Orange Cyberdefense's SensePost Team
https://hello.singe.za.net/
Caitlin Condon @catc0n.bsky.social Adventurer. Takes a lot of photos, calls many places home. VP of research @VulnCheck. Previously vulnerability research director @Rapid7 / @metasploit.
Shane Huntley @shanehuntley.bsky.social Aussie security / tech guy.
Google Threat Intelligence. Co-founder Threat Analysis Group (TAG). Tweets are my own not my employers.
Hexacorn @hexacorn.bsky.social Red Brain, Blue Fingers
Malware Analysis, Reverse Engineering, Threat Hunting, Detection Engineering, DFIR, Security Research, Programming, Curiosities, Software Archaeology, Puzzles, Bad dad jokes
https://www.hexacorn.com/blog/
hexacorn@infosec.exchange
Dan Goodin @dangoodin.bsky.social Cybersecurity Reporter, Ars Technica: https://arstechnica.com/author/dan-goodin/ Hungry for tips. Text me on Signal: DanArs.82. "The world isn’t run by weapons anymore, or energy, or money. It’s run by little 1s and 0s, little bits of data."
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
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
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
the grugq @thegrugq.bsky.social 
Mark Dowd @mdowd.bsky.social Internet hacker
The Shadowserver Foundation @shadowserver.bsky.social Our mission is to make the Internet more secure by bringing to light vulnerabilities, malicious activity and emerging threats. Join our Alliance!
https://shadowserver.org/partner
Taggart @taggart-tech.com @mttaggart@infosec.exchange. Displaced Philly boy. Executive Director of @ifin-intel.org. Threat hunter. Educator. Dad. General in the AI Resistance.
taggartinstitute.org
wtfbins.wtf
linktr.ee/mttaggart
Eliot Higgins @eliothiggins.bsky.social Founder and creative director of Bellingcat and director of Bellingcat Productions BV. Author of We Are Bellingcat.
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Alexander Martin @alexmartin.bsky.social Journalist covering cybersecurity and intelligence. UK Editor at The Record from Recorded Future News. Dad of two.
🏠 Sheffield
📧 alexander.martin@therecord.media
📱 Signal: AlexanderMartin.79
metlstorm @metlstorm.risky.biz Unix berserker, retired hacker-con organiser (Kiwicon!) and now technology-editor-slash-sysadmin-janitor at Risky.biz.
Was @metlstorm on Twitter, am metlstorm@infosec.exchange on Masto. 
Jason Koebler @jasonkoebler.bsky.social Journalist @404Media.co
Signal: jason.404 // email: jason@404media.co
Patrick Gray @patrick.risky.biz https://risky.biz/
erbbysam @erbbysam.bsky.social Software security, cryptography etc
ϻг_ϻε @steven.srcincite.io Hermetic Initiate. Exploring conscience and the nature of reality. I also hack things.
Swissky @swissky.bsky.social RedTeam | Pentest
Author of PayloadsAllTheThings & SSRFmap
http://github.com/swisskyrepo
d3fp4r4m @defparam.bsky.social Security Researcher
@defparam@infosec.exchange 
mpgn @mpgn.bsky.social Flibustier du net ̿ ̿̿'̿'\̵͇̿̿\=(•̪●)=/̵͇̿̿/'̿̿ ̿ ̿ ̿
Podcast Hack'n Speak http://anchor.fm/hacknspeak
Github https://github.com/mpgn
Ron Bowes @iagox86.bsky.social Staff Product Detection Engineer @ Censys. https://skullsecurity.org
Mostly post about professional stuff, maybe some improv stuff and maybe even magic some day. Seattle-based (originally Canadian), queer, cybersecurity nerd.
(He/him)
vortex @vortex.au I do offensive security things on the internet
Markus Wulftange @mwulftange.bsky.social Principal Security Researcher and Pâtissier at @codewhitesec.bsky.social
Random Robbie @what-security.co.uk #infosec | #exploiter | #asm | fox | #LFC | scanner of the internet | #wordpress exploiter | #greynoise lover. | #Bugbounty hunter | Northerner | #UK
Sam Curry @zlz.bsky.social 
Louis Nyffenegger @snyff.pentesterlab.com Founder/CEO/Trainer/Researcher/CVE archeologist
@PentesterLab. Security engineer. Bugs are my own, not of my employer...
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!
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
Bitquark @bitquark.io 🥷 British hacker and coder
✨ Space and language nerd
🎩 Black Hat EU review board
🐈 Neurodivergent. Poly. He/him.
🛠️ https://github.com/bitquark
Frycos @frycos.bsky.social Private account! Red teamer @codewhitesec. @frycos@infosec.exchange @frycos@X
/ 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🧐
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/
TomNomNom @tomnomnom.com Computer booper and food enthusiast. He/him.
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 🥰
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.