Stephan Wiefling @swiefling.de 🔑 Usable Security (USec) & Authentication Research
💼 USec Consultant @ Vodafone | Adjunct Professor | Past: Meta
🎓 Dr.-Ing. (Ruhr University Bochum) | CISSP
🔗 stephanwiefling.de | Fediverse: social.swiefling.de/@swiefling
Views my own, not my employer’s.
Jo Franchetti @thisisjofrank.bsky.social Dev Advocate // I make fun things for the web // More awks than Mordor // 🐈Pickle 🐈Puff // She/her 💖
Tim (Wadhwa-)Brown :donor: @timb.me.uk push(@fediverse, "Adversarial Engineer"); # i hack in Perl
🌉 bridged from ⁂ https://infosec.exchange/@timb_machine, follow @ap.brid.gy to interact
Electromagnetic Field @emfcamp.bsky.social A weekend of geekery in an internet-connected field. Returning in summer 2028.
Website: emfcamp.org
Fediverse: @emf@emfcamp.org
Twitter: twitter.com/emfcamp
fairycakepixie @fairycakepixie.bsky.social Personal account. Trying to be a good human. Views my own. 🌻 (She/her)
Victoria Walberg @vickyjo.bsky.social Insomniac security & tech geek.
Lancashire lass in The Netherlands, via Brighton, London, and Switzerland.
Tweeting in a personal capacity.
Stefan @irreality.bsky.social 
David @ InnoVirtuoso @innovirtuoso.bsky.social Blog @ www.InnoVirtuoso.com | InfoSec, Cyber, AI Enthusiast | I write about Tech and News, AI, BCI, and other IT stuff.
Contact me at 📧 info@innovirtuoso.com
M LeMont @mistersalesman @mistersalesman.bsky.social M LeMont — multi-talented author and producer of 36 books across genres, from poetry (Letters I Never Sent mybook.to/Wlkl ) to heartfelt novels like Harry’s Love Letters and What’s Done in the Dark Comes to Light.
Taylor Green @taylorgreensky.bsky.social Joined Bluesky November 2024. Curator, Author 12 Books/Shallow Seas mybook.to/IgCB7G
Poetry From The Soul t.co/grtFXel9wB Close Your Eyes Wonder Why https://a.co/d/i0OqcDW
Tarah Wheeler @tarah.org CSO of TPO.group ♦️ EFF Board of Directors♦️she/her ♦️ bestselling author but only that one time
Smashing Security podcast @smashingsecurity.com Funny award-winning weekly podcast about hacking, cybercrime, and privacy with @grahamcluley.com.
https://www.smashingsecurity.com
👕 Merch https://www.smashingsecurity.com/store
Patreon: https://www.smashingsecurity.com/plus
Douglas @do0g7e.bsky.social Netsec Engineer with NHS. Do everything from pentest to firewalls to proxies to blue team. Probably more. EDR, docs, threat hunting, coffee drinking
Dan King @itakenaps.bsky.social 💻 Sneaky hacker by day, nap champion by night 😴 | Poppin' shells and stealing passwords 💥 | If I’m not hackin, I’m snoozing – both require serious skills! 🥱💥
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. 
Steve @z0rlac.bsky.social 
JJTurner @jjturner.bsky.social Security and networking for sooooo long
Thom @thomlangford.bsky.social 
Chris Rice @handle.invalid British nerd living in Amersfoort 🇳🇱 Working in tech 💻
STH: Fulham FC 🖤🤍 and Fortuna Düsseldorf ❤️🤍
F1 enthusiast 🏎️ Train traveller 🚆 German football enjoyer 🇩🇪
Haroon Meer @haroonmeer.canary.love Security Geek. We build Thinkst Canary - https://canary.tools
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
Ian Coldwater 🧊🚫 @lookitup.baby Kubernetes SIG Security Co-Chair, goose in the mainframe. Minneapolis. They/them. Stay punk 🏴
MSP feed info: https://bsky.app/profile/amityf.bsky.social/post/3mrv36uo4pc2a
sirjester @sirjester.bsky.social How many years experience do I need before I can claim to be a veteran of Cybercrime, Cyber Security, InfoSec, Information Warfare, Data Protection & Privacy issues? Moved out of M&A and got a better work-life balance 🙏
Sole Founder of Host Unknown 😏
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
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
Dumbisms @dumbisms.bsky.social Accidental CISO. Shitposter then deleater. Love news radio but can’t listen anymore. Hopefully the next 40 years goes fast.
@scadahacker.bsky.social @scadahacker.bsky.social IT / OT bod interested in protocols, frequencies and IOT/ICS security
🕸️ Brittney J 💳 @brittneyjordan.bsky.social 💳💰Fraud strategy analyst with 8+ years in the card world and a cyber security degree. I work with VISA products. Unapologetically obsessed with The Nightmare Before Christmas. 👻🕸️🎅🏻🎄 🇳🇱
Paul Batson @paulbatson.bsky.social Lazysecurity on the hellsite and infosec.exchange. Secops geek. Detection engineering, threat hunting & IR mostly. Occasionally helps out with some analysis or testing pens. Former BSidesLondon organiser.
Chris Ratcliff @chrisratcliff.bsky.social Car and whisky fan. Co-host of the Automovie Podcast. Takes photos, shares whisky thoughts, and builds Lego.
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.
Mark Hamill @markhamillofficial.bsky.social Believe in yourself! Work hard, never give up & anything's possible! OR: Kick back, relax & aim low: You'll never be disappointed...😜
John Opdenakker @j-opdenakker.bsky.social Blogger | #Infosec | #AppSec | Security awareness | Occasional Public Speaker | Cycling | Running | Posts might contain bad humor, sarcasm or irony | Takes your security seriously!
https://johnopdenakker.com
Lesley Carhart @hacks4pancakes.com I am eminently qualified to speak from experience about a variety of dumpster fires.
ICS DFIR at Dragos, martial artist, marksman, humanist, level 14 Neutral Good rogue, USAF retired. I post *very serious* things about infosec. Thoughts my own. Enby. 🏳️🌈
Peter Hicks @poggs.com Director of OpenTrainTimes, vaccinator, phlebotomist, vegan, considerate cyclist, Open Data advocate, Dad-joke teller, cat and Italian Greyhound lap provider. Probably contains Java.
As seen on TV. Also not a goose. Or pipe smoker.
Brian Whelton @brianwhelton.bsky.social Network/Security chap, guitarist, cert junkie, F1 fan, festival, gig & conference attendee.
I stroke cats & drink tea!
All views are possibly mine...
Campbell M | zyx2k @zyx2k.bsky.social Info sec pro, FCIIS, ChCSP etc but mostly talk about sailing, dogs and motorbikes tbh
Charlie Brooker @charliebrooker.bsky.social Underwhelmist.
Glenn Pegden @glenn.pegden.com Good Guy Hacker, Dad, App Sec / Vuln Man / Pentest specialist and leader, conference organiser, volunteer, speaker and attendee, retro gamer, Blackburn Rovers and Leeds Knight fan ….. hacker
http://Glenn.pegden.com/findmeon
Nikki Webb @nikkic360.bsky.social Happiest by or in the sea 🖤🌊 Global Channel Manager for MSSP Custodian360, part of The Cyber House Party team, Volunteer at The Cyber Helpline. Total cat lady 🖤🖤🖤🐱🐱🐱
Random Robbie @what-security.co.uk #infosec | #exploiter | #asm | fox | #LFC | scanner of the internet | #wordpress exploiter | #greynoise lover. | #Bugbounty hunter | Northerner | #UK
φαυʅ ∞ 🇺🇦 ∞ #𝘿𝙚𝙢𝙤𝙘𝙧𝙖𝙩 #𝙉𝘼𝙁𝙊 ₁₃₇ @dereume.bsky.social Hi everyone, I'm from Twitter
#𝙎𝙡𝙖𝙫𝙖𝙐𝙠𝙧𝙖𝙞𝙣𝙚
#𝙉𝘼𝙁𝙊𝙁𝙚𝙡𝙡𝙖𝙨
#𝙁𝙚𝙡𝙤𝙣𝙈𝙪𝙨𝙠
#𝘿𝙚𝙢𝙤𝙘𝙧𝙖𝙩
#𝙬𝙩𝙥𝘽𝙇𝙐𝙀
#𝘾𝙞𝙣𝙚𝙢𝙖
#𝙈𝙪𝙨𝙞𝙘
🗯️ #𝘼𝙧𝙩
Claudio Criscione @criscio.net Security Robot Overlord @ Google.
Vulnerability Management
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Mo Amin @infosecmo.bsky.social Work: Cyber Security - Minimise the burden. Optimise for balance. Interested in lots of things.
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/
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Timeless Prototype @timeless.bsky.social Thoughts, stories and ideas. Prophet emeritus.
https://timelessprototype.wordpress.com/ https://twitter.com/TimelessP
https://spoutible.com/TimelessP
Baptiste Robert @fs0c131y.com CEO @ Predicta Lab | French Security Researcher, Ethical Hacking, OSINT
B1gt1dd13s @bentleyaudrey.bsky.social Tech & Humor 🪬
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
Phillip Wylie @phillipwylie.bsky.social Offensive Security Professional | Phillip Wylie Show Podcast Host | The Pentester Blueprint coauthor | TribeOfHackers Red Team | https://linktr.ee/phillipwylie
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
Naomi Wu 机械妖姬 @realsexycyborg.bsky.social China's #1 Tech & DIY YouTuber
Open Source, 3D Printing & Digital Fabrication, Automation, Infosec
1/18th synthetic
'It's all about merit until merit has tits'
Shenzhen, China
youtube.com/c/SexyCyborg
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- C Cybergibbons @cybergibbons.bsky.social
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?
Beau Woods @beauwoods.com hack all the cybers
Jeff Moss @thedarktangent.bsky.social thedarktangent@defcon.social
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Jayson E. Street💜🤗💜 @jaysonstreet.bsky.social Hacker - Helper - Human
JaysonEStreet.com
gattaca @gattaca.bsky.social Grump, keynote, breaker of things, dad, podcaster, creator of (-:|3, OG, raconteur, gentleman spy, investor, whisky distillery owner
Nik @hvcco.bsky.social Cat staff and duct tape officianado
Blenster 🅅 @blenster.com I used break things and write detailed reports but now I'm management. Rapid Prototyper. Maker. Apprentice Knifemaker. Sometimes I try to help explain social situations to dudes.
Trans rights are human rights and Black lives matter.
I love you.
Ollie Whitehouse @ollieatnowhere.bsky.social CTO at the UK's National Cyber Security Center 
ᴉpᴉǝH 🐐💕 @summerheidi.bsky.social infosec! personal account. views are that of rustic australian countryside. nothing is an endorsement. everything is awkward.
Chris Kubecka 🇵🇷🇨🇿🇳🇱🇺🇦🇷🇴 @secevangelism.substack.com Established security after Shamoon cyberwar attack against @Saudi_Aramco, legally hacked Boeing, post-quantum computer hacking, author, veteran @AFSpace @DarknetDiaries #30 former @MiddleEastInst
Rowenna. 2 ‘n’s. Ro-WEN-na. @missiggeek.bsky.social She/her. Aka Miss IG Geek on other socials. Humanity in data, digitech-ethics, and misanthropology, occasional puffins. #ActuallyAutistic 🏳️🌈
Everything you know is actually way more complicated than you think
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
Space Rogue @spacerog.bsky.social I fight for the user. | L0pht Heavy Industries - ATStake - Whacked Mac Archives - Hacker News Network - Cyber Squirrel 1 | Semgrep
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
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 🇺🇦
Lisa Forte @lisaforte.bsky.social Cyber security, climbing, caving and diving! 💜
Rory McCune @mccune.org.uk Security geek, Containers, Kubernetes, Golang/Ruby, hillwalking
Home Page :- https://www.mccune.org.uk
Blog:- https://raesene.github.io
Cooper @ministraitor.bsky.social Dutch software dev who spends his free time travelling all over the place to film a whole bunch of (mostly) security conferences.
Robin Bradshaw @en4rab.bsky.social Cybersecurity and hardware hacking
Saielle 🏳️⚧️🇧🇷 @saielle.bsky.social California girl in London | AuDHD | Photographer | Tech Witch | Sapphic & Polyamorous | Chaotic Good | Cat Mom | TTRPG GM
Alt: A Bridge in West London at sunset
https://hopp.bio/saielle
Jonty Wareing @jonty.bsky.social Accidentally responsible
Also http://chaos.social/@jonty
Previously http://twitter.com/jonty
Always http://jonty.co.uk
Chris P aKa Ghostie @therealchrisp.com I'm no expert, I've just had a lot of practice.
Red Team Lead.
My SE101 blog is not abandoned, just not had much time https://blog.ghostie.org/
Used to be Ghostie_ on the other place.
Violet Blue® @violetblue.bsky.social Awarded author, journalist: cybersecurity, privacy, Covid. WIRED, PopSci, Spinoff, Engadget, FT, IFJ. Visiting Scholar at Stout Research Centre, NZ. Black Hat keynote. S/her.
Bio: about.me/violetblue
More: linktr.ee/viblue
News: patreon.com/violetblue
banasidhe @banasidhe.bsky.social Handbasket driver, trip hazard, walking trigger warning. C-PTSD
No gods, no masters.
they/them
SeCURiTY NiHiLiST @autom8on.bsky.social Offensive security nut job (you don’t *have* to be mad to work here, so I’m told 😝). Lock collector, and occasional locksport competitor. Appropriately obsessed with dogs…
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
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.
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
uɐpʇou@ ✸ @notdan.bsky.social genuinely flawed satire ه҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿ im U17r4H4rd(0r3 d00d
Troy Hunt @troyhunt.com Founder & CEO of @haveibeenpwned.com, the most trusted name in data breach intelligence. Speaker, blogger, Microsoft Regional Director. Gold Coast, Australia.
RenderMan @ihackedwhat.bsky.social I hack, I think, I question, I offend
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
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
HollyGraceful @hollygraceful.bsky.social I climb stuff and I hack things.
hackerfantastic.crypto @hackerfantastic.bsky.social Co-Founder https://hacker.house cyber security assurance & hacker training ~ ISBN9781119561453 ~ a book on professional hacking. Contact for competitive quotes on cyber security projects. 
SteelCon @steelcon.info SteelCon is a family friendly hacker conference in Sheffield.
Next event is July 2026.
Krypt3ia @krypt3ia.bsky.social Gen X,
Polymath,
Doctor of Divinity,
Scottish Lord,
OSINT & Intelligence Eldar,
Itinerant Cyber Hobo,
Shakespeare Oxford Fellowship Member,
T.E. Lawrence Society Member,
Infamous Jihadi Offender,
Blogger blocked in Russia
A.I. Prompt Whisperer
Cited in n