@andregironda.bsky.social @andregironda.bsky.social 
Richard ‘rej’ Jones @rejj.bsky.social Security dude who likes breaking stuff as well as loving wine, food, photography & travel!
Andrew Waite @andrew.waitesworld.co.uk Security Bit-Twiddler by day, plastic soldier botherer and paintbrush licker by night.
Deth Veggie @dethveggie.bsky.social Herr Doktor Professor Deth Vegetable -- CULT OF THE DEAD COW -- .ooM
Hacker / Archaeologist / Gadabout / Professional Something-or-Other. Anti-fascist and Pro-science. As the old axiom says, reality has a liberal bias.
Nazis need to be punched.
Jerry Gamblin @jgamblin.bsky.social Bringing clarity to vulnerability intelligence through open-source tools. Founder of RogoLabs | Creator of http://cve.icu & http://patchthis.app.
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
Quentyn @quentyn.bsky.social the artist formally known as Quentynblog on twitter - i do infosec, running and outdoors things. Not verified so don't message me here as i cant read them at all
Rik Ferguson @rikferguson.com Immigrant. VP Security Intelligence @Forescout, Co-founder @RespectInSec. Board @vaultree, Cybersecurity Futurist, Researcher, Award-winning writer/producer. He/Him. Pussy in bio.
Substack - Ferguson.ink
Slava Ukraini 🇺🇦
Phat Hobbit @phat-hobbit.bsky.social CISO Inversion6.com, CTO Octopi Managed Services, CyberEd Board Member, Gartner Peer, Defcon SOC Goon, Amateur Dentist & Infosec Fashionista - opinions expressed are my own.
Tamonten @tamonten.bsky.social Maker, ex-security nerd, biker, lover of beer and donuts, board game collector.
Sixty skeletons and a hammer in a trench coat. 
Dirk (verıfied) @drwetter.bsky.social Him/he . Still looking what will happen here.
Sci PhD. Chem/Phys.
Prof: General Infosec, Appsec, TLS, Containers, prefers defending over breaking
Life: concerned about world climate politics, egoism+greed.
Ted James, SQL Agent Man @deepeddyinfosec.bsky.social Application Security Engineer, script adult, learner of things, drinker of pints, reader of books, player of guitars, feedback scientist. @hacknotcrime Advocate
Guillaume Assier ⛅ @guillaume.engineer Opinions are my own | IT Security engineer🛡️• #Cyber, #Tech and #Cloud 🌤️
Piotr Bazydło @chudypb.bsky.social Principal Vulnerability Researcher at the watchTowr | Previously: @thezdi | https://chudypb.github.io
GreyNoise @greynoise.io GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
obilodeau @obilodeau.bsky.social Father of two. Hacker. President @NorthSec. Research at Flare. Cofounder of MontréHack. Love to teach and share. BlackHat, Defcon, SecTor speaker.
Josh Michaels @00wham.bsky.social 
hrbrmstr 🇺🇦 🇬🇱 🇨🇦 🏳️🌈 @hrbrmstr.dev a.k.a. boB Rudis • 🇺🇦 Pampa • Don't look at me…I do what he does—just slower. #rstats #js #duckdb #goavuncular•👨🍳•✝️• 💤• https://dailydrop.hrbrmstr.dev • Maine🦞- I InfoSanity Research Group @infosanity.co.uk Freelance Information Security Research Outfit; probing and prodding wherever looks interesting - care to follow us down a rabbit hole?.....
Dan Raywood @danraywood.bsky.social Content creator and writer, sometimes speaker, analyst and marketer. Spurs fan and Spurs women season ticket holder, traveller, beer drinker and occasional personal stuff sharer.
Joe Pettit @jpettit.bsky.social Director at Bora
Cybersecurity & Marketing 
@fulltilt8.bsky.social @fulltilt8.bsky.social 
C:\hristian Mehlmauer @firefart.bsky.social 
JK @regulartacos.bsky.social IT sec & mgmt, animals, diy, foodie, gamer, punk, funk, indy, hip-hop. Fuck nazis.
Mark Goodwin @computerist.org I help people use machines and work with information more safely.
João Ramos @j0xa0.bsky.social InfoSec veteran | 23+ yrs building defences, breaking barriers
CISSP | GMON | GCFA | GREM and more
When I’m not at my computer tinkering with security, you’ll find me cooking, reading, or boarding a plane.
tuckner @johntuckner.me Working on finding bad software extensions.
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
Syler Clayton @sylerthecreator.bsky.social ^(?:Software|Hardware)(?: Exploit)? Development$
https://www.patreon.com/c/SylerTheCreator
ReWheel, VESC, libwiiu, 3DS Decryptor, XIM, CCDC Red Team
Anant Shrivastava @anantshri.info Researcher | Trainer | Security Professional | Developer | Admin
@viktoriaslp.bsky.social @viktoriaslp.bsky.social 
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Allan “Ransomware Sommelier” Liska @ransomwaresommelier.com Recorded Future - Ransomware Researcher
Owner @greenarcher.io - Yours Truly, Johnny Dollar | The Press Guardian | The Clock | The Green Archer
Weird mix of security, comics, photography and wine!
www.greenarcher.io
Arcas De Disco @puckarks.bsky.social #MutualAid #GeneralStrike
#Occupy #StreetMedic(Retired)
We must learn that passively to accept an unjust system is to cooperate with that system, and thereby to become a participant in its evil.
Organize Educate Agitate Resist
CyberAlerts @cyberalerts.bsky.social 🚨 Automated posting of Known Exploited Vulnerabilities (KEV) from CyberAlerts.io
Delcio 😎 @godelcio.bsky.social Father 🙅♂️🙅♀️ Dev & Cyber, I like computers and tech 💻 Lifelong learner 📚 Respect for Life and Diversity. Living and learning. Views are my own.
António Costa @eucopresident.consilium.europa.eu President of the European Council
Mike Galsworthy @mikegalsworthy.bsky.social Chair of European Movement UK. 🇬🇧 🇪🇺
Founder of the Bylines Network.
Founder of Scientists for EU.
Lover of science, Europe and humanity. 🙌
Ursula von der Leyen @vonderleyen.ec.europa.eu President of the @ec.europa.eu
Mother of seven. Brussels-born. European by heart. 🇪🇺
Andrew Morris @andrewmorr.is 🔳 founder of @greynoise.io. computers, networks, technology enthusiast. big goober.
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
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
(¯`·._{JEFF}_.·´¯) @handle.invalid | Blue Team Hacker | Legal Sector | Martial Artist | Navy Veteran | Geek of All Trades | PS5 Gamer | Hiring Supervisor | F Trump |
Gareth Heyes @garethheyes.co.uk Web security researcher at PortSwigger. Author of JavaScript for Hackers, Shazzer and Hackvertor.
https://garethheyes.co.uk/#latestBook
DougsRants @dougsrants.bsky.social 
Gorazd Božič @gbozic.bsky.social Head of SI-CERT
Simon Bennetts @psiinon.bsky.social ZAP Project Lead
Dave Ryan @daves.social I work on making corners of the Internet 🔶 2x cancer survivor 🔶 he/him 🏳️🌈 daves.bio
The Hacker News | #1 Trusted Source for Cybersecurity News [Uno… @thehackernews.com.web.brid.gy The Hacker News is the top cybersecurity news platform, delivering real-time updates, threat intelligence, data breach reports, expert analysis, and actionable […]
🌉 bridged from 🌐 https://thehackernews.com/: https://fed.brid.gy/web/thehackernews.com
BH Consulting @bhconsulting.bsky.social Provider of specialist Cybersecurity and Data Protection advisory services. Fully Independent of all IT vendors. Unbiased expertise you can trust. www.bhconsulting.ie
Allan @allanfriedman.bsky.social SBOM Champion. Paranoid about supply chains of all kinds. Former full-service technocrat at CISA, NTIA. Lapsed{engineer, academic, author}. Now wandering the world doing acts of infosec-goodness, & occasionally getting paid for it. Poster of food pics.
The Hacker News @thehackernews.bsky.social #1 Most trusted publication for breaking cybersecurity and hacking news, insights, and analysis for information security professionals.
BSides Leeds @bsidesleeds.bsky.social BSides Leeds 🦉- 13th of June 2026. Cloth Hall Court, Leeds, UK! ✨❤️
Gary Hawkins @garyhawkins.net Mostly memes and shitposting, with maybe the occasional smidge of the cybers.
PyroGuy_UK @pyroguy-uk.bsky.social Fire Spinnin Security Engineering Leader,
Breaker of things,
Builder of stuff,
Model builder,
BSidesNcl & dc44191 Elder, infosecbots
Technowomble,
Techlotmenter
he/him
Javvad Malik @j4vv4d.com The unholy alliance between information security and cynicism wrapped up in storytelling and videos. www.JavvadMalik.com
Sole founder of Host Unknown
Marius Avram @mariusavram.bsky.social Cyber Security Enthusiast. Two sons' proud dad!
Edwin van Andel @yafsec.bsky.social http://Zerocopter.com | CTO | Speaker | Security | Hacking | ALT-S Organizer | נקר ירוק | Last Unicorn Con | Defcon 003120 | @iamthecavalry | @yafsec@mastodon.online
Common Vulnerabilities and Exposures (CVE™) Program @cveprogram.bsky.social Account maintained by the CVE Program to update the community on CVE-related announcements. http://www.cve.org
Brian Honan @brianhonan.bsky.social Irish cybersecurity pro, author, speaker, and commentator.
CEO of BH Consulting, Head of Ireland's first CSIRT - IRISSCERT, former member of ENISA Advisory Group, & former Special Advisor on CyberSecurity to Europol.
PGP ID 0xF1B5CF7D
Matthew Hughes @matthewhughes.bsky.social Journalist (ex The Register, The Next Web, HowToGeek). Writer. Software developer. Dog owner (x3). Scouser.
I have a newsletter about how tech companies are ruining our lives. https://whatwelost.substack.com/
Danielkennedy74 @danielkennedy74.bsky.social - Cybersecurity industry analyst.
- Professional listener to CISOs, occasional skeptic of vendors.
- Former CISO.
- Opinions mine, data-backed when possible.
Andy Gill @zephrfish.yxz.red Defcon goon, Adversarial Architect. Photography, Driving, Blog and general purveyor of chaos. Metal/DnB Fan creator and owner of https://lms.zsec.red
Stefano Di Paola @wisec.bsky.social CTO & Chief Scientist of IMQ MindedSecurity. (Web) Application Security consultant, researcher and enthusiast. I love lateral thinking.
Jenna McLaughlin @jennamclaughlin.bsky.social NPR Correspondent covering technology and national security.
Send me a tip: Text JennaMcLaughlin.54 on Signal from personal (nonwork) devices.
Duane Dunston, EdD @gnugro.bsky.social I legally create cyber attacks and malware | Mitre Threat Intell Cert | Mitre Adversary Emulation Methodology Cert |TEDx Speaker | Mossé Institute Student | former college prof | (he/him)
Chris Eng @ceng.bsky.social Still deciding if I even like social media any more.
AaronCTI @aaroncti.bsky.social Co-Founder Webamon, Founder @perspectiveintel.bsky.social. Author of Cyber Threat Intelligence: The No-Nonsense Guide for CISOs & Security Managers. Training at Kase Scenarios! Exec/Webinars @osint-community.bsky.social and creator of osintportal.com
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
David Litchfield @litchfield.bsky.social Dad, Powerlifter, Security at Apple, Photographer
Carroll @thecontractor.io thecontractor.io
Jay 🦋 @jay.bsky.team Founder & Chief Innovation Officer @ Bluesky
Working on @attie.ai
🌱 🪴 🌳
ʇıq @charlievedaa.bsky.social blue team, GSE #112
sparwol @sparwol.bsky.social 
Phyu @phyushin.bsky.social 
Ross Morsali @ross-m.bsky.social I build plugins for WordPress, working on Search & Filter v3
rm.codes
searchandfilter.com
Lisa Forte @lisaforte.bsky.social Cyber security, climbing, caving and diving! 💜
cje @cje.io founder @bugcrowd && co-founder @disclose_io || hacker, entrepreneur, executive, advisor || عصا موسى || #w00w00
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Random Robbie @what-security.co.uk #infosec | #exploiter | #asm | fox | #LFC | scanner of the internet | #wordpress exploiter | #greynoise lover. | #Bugbounty hunter | Northerner | #UK
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Graham Cluley @grahamcluley.com Award-winning #cybersecurity keynote speaker, writer, podcaster | Host of multi-award-winning @smashingsecurity.com podcast.
❤️ #DoctorWho, #Beatles, #Chess
He/him
🌐 https://grahamcluley.com
🎙️ https://www.smashingsecurity.com
UK_Daniel_Card @mrr3b00t.bsky.social 
Mike Thompson @appsecbloke.com Information security leader, vendor adversary, occasionally opinionated.
Shitposts, memes, music and thoughts on the state of the place.
linktr.ee/appsecbloke | https://soundcloud.com/michael-thompson-70891340
SPCoulson @spcoulson.bsky.social Ranter of things - A lot of tech posting, reposting with a smattering of gifs and cheeky fun.
I was @SPCoulson on Twitter
I am occasionally wrong.
#HiddenText
bit.ly/HiddenText
Mainly post on LinkedIn though...
https://www.linkedin.com/in/stuartcoulson/
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
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 🥰
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Ollie Whitehouse @ollieatnowhere.bsky.social CTO at the UK's National Cyber Security Center 
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
renniepak @renniepak.nl Self-XSS connoisseur. Elite Hacker. MVH H11337UPBash. One-Percent Man. Creator of CSPBypass.com. (he/him)
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
STÖK @stokfredrik.bsky.social Hacker / Creative
Mischief & GOOD VIBES ONLY
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Marcus J. Carey 🏴☠️ @marcusjcarey.com 🔥 Hope Dealer | 🙃 Table Flipper | 🎨 Artist
🌟 Tribe of Hackers, US Navy, NSA, DIA, Builder
💀 Hacker | 🗣️ InfoSec, Coding, GenAI
💡 Simplifying tech, mentoring, building communities
📚 My new books >> Spot the Wolf & Hacker Inc.
🔑 Legacy > clout
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
(╯°□°)╯︵ S︵T ︵U ︵🔥 @cybersecstu.bsky.social I'm a Teams reaction GIF, I like OSINT, Consulting Director ✍️ CTI & Analytics book ~202X, Tracelabs Black badge x3, Ex-Podcaster, ex The many hats club, #cyber Views my own or the AI's.
🇵🇹 snipe, lixo tóxico ⭑⭒⭒⭒⭒ @snipe.lol Hacker, dev, CEO of @grokability.com, author, speaker, open sourcerer, sudo incarnate, poo doula. I make @snipeitapp.com. Was @snipeyhead. Married to @uberbrady.com. Vivo em Lisboa 🇵🇹. #Laravel #FOSS
🔗 snipe.net
🔗 snipe.pt
🐘 @snipe@hachyderm.io