dook @dook.bsky.social 
Jonathan Bar Or ("JBO") 🇮🇱🇺🇸 @yo-yo-yo-jbo.bsky.social Security research architect for Microsoft Defender for cross-platform.
Linux, Windows, Android, MacOS, iOS, ChromeOS, baremetal.
https://jonathanbaror.com
@rabidwh0re.bsky.social @rabidwh0re.bsky.social Hacker
Tom Plant 🌱 @tplant.com.au (bre|m)aking clouds, Windows, and fancy keyboards. R&D devicie.com, organiser pecanplus.ecusdf.org, OSS github.com/pl4nty
b33f @fuzzysec.bsky.social 意志 / Antiquarian @ IBM Adversary Services / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching
at labs.calypso.pub
override @override.bsky.social IT Generalist | Cybersecurity🔒 | Web Exploitation | Reverse Engineering
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
0xor0ne @0xor0ne.bsky.social | CyberSecurity | Reverse Engineering | C and Rust | Exploit | Linux kernel | PhD | Only My Opinions :) |
It was like this when I found it @ifounditthisway.bsky.social Seriously, it was already like that.
#PvJCTF Red Cell
Opinions are mine and not necessarily those of my employer, clients, vendors, armorer, shaman...
Spaghetti Carbanana @zwejas.bsky.social Comic relief
Jen Leggio @mediaphyter.bsky.social Cyber. Horror. Cats. Magic. Raconteur. Comedienne. Exhausted. Personal account.
Will Dormann is on Mastodon @wdormann.bsky.social I play with vulnerabilities and exploits.
While this site initially showed promise, I've grown tired with its lack of improvement.
You'll find me @wdormann@infosec.exchange on Mastodon.
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
netspooky @vacci.ne knuck if you buck
https://n0.lol
Haroon Meer @haroonmeer.canary.love Security Geek. We build Thinkst Canary - https://canary.tools
Marc Rogers @cjunky.bsky.social Ramblings of a Mad Englishman: Hacker @ BBC's Real Hustle & Mr Robot. Head of Sec @ DEF CON. Founder @ CTI-League, Ransomware Taskforce, w00w00, CDC NSF, (He/Him).
Also
Twitter @marcwrogers
Mastodon cj@chaos.social
Patrick Gray @patrick.risky.biz https://risky.biz/
Stefano Zanero @raistolo.bsky.social Tinkerer, security geek, recovering entrepreneur, full professor at www.polimi.it, frequent flyer, private pilot, and generic pundit. He/Him 🏳️🌈
For aviation follow me on Instagram, same id!
ian dupont @comedian.bsky.social Vulnerability Researcher @ Margin Research | Adjunct Professor @ NYU
Mathy Vanhoef @vanhoefm.bsky.social Prof. @KU_Leuven | Research in Network & Software Security | Known for WPA2 KRACK attack, Dragonblood, and FragAttacks | Open to consultancy | Ex-Postdoc NYU
Matthew Garrett @mjg59.eicar-test-file.zip Former biologist. Actual PhD in genetics. Security, OS security teaching at https://www.ischool.berkeley.edu.
Blog: https://codon.org.uk/~mjg59/blog
Signal: @mjg.59
He/him
Opinions expressed here are mine, not my employer's
rpw (aka esizkur) @rpw.bsky.social 
Ariel @adversariel.bsky.social busy building stuff. likes: offensive security, LLMs, and dumb memes. prev: research scientist @ OpenAI / CS PhD @ Harvard / cofounded DEF CON AI Village
pixelatedboat aka “mr bluesky” @pixelatedboat.bsky.social The 76th most followed account on bluesky. I will NOT be updating this ranking when it’s no longer true
Yarden Shafir @yardenshafir.bsky.social A circus artist with a visual studio license
Jeri Ryan (official account) @jerilryan.bsky.social Actress, mom, wife, foodie, gardener. Not necessarily in that order. Trying to make a better world for our kids. Star Trek: Picard. That’s CAPTAIN Seven to you. 🖖🏼😋❤️
deb kavaler @debdebdeb.bsky.social Crypto Wallet Recovery Emergency Responder & Old School Hacker Den Mom. All the rumors are true. (usual disclaimers definitely apply) DMs read.
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Perri Adams @perrib.us Fmr DARPA Program Manager | Fmrly Organizing DEF CON CTF with Nautilus | RPISEC Alumna | Personal account, opinions my own, RT ≠ endorsement
David Maynor @davemaynor.bsky.social threat intelligence and R&D
Richard Johnson @richinseattle.bsky.social Fuzzing; Vulnerability Research;
Deep Learning; Reverse Engineering
Training & Publications @ http://fuzzing.io
Hacking the planet since 1995
Undercurrents.io BOFH
I'll stop the world and melt with you
Kumail Nanjiani @kumail.bsky.social My new special Night Thoughts is out NOW on Hulu.
linktr.ee/kumailnanjiani
Meysam @r00tkitsmm.bsky.social Security Researcher.
joern @jrn.bsky.social Still your mom’s favorite hacker!
Justin Schuh @justinschuh.com Back in Chicago as a stay-at-home dad and small business owner. Expect some infosec/privacy/safety, 3D printing, and politics.
infosec.exchange/@jschuh
Defunct: twitter.com/justinschuh
🔮 Daniel Hückmann @sanitybit.com ∞ 42 ∞
📷 Photography: @danielhuckmann.com
🌐 Organizer: @rainsec.org || @netsec.bsky.social
🦋 InfoSec, Psychedelics, Psychology, & Neuroscience
GrapheneOS @grapheneos.org Open source privacy and security focused mobile OS with Android app compatibility.
https://grapheneos.org/
MetropleX @metroplex.bot Privacy is a Human Responsibility
Oversharing is not Caring
Priv/Acc
Human
GrapheneOS Advocate
@grapheneos.org
Channels:
Discord: https://grapheneos.org/discord
Matrix: https://matrix.to/#/#community:grapheneos.org
Personal | Likes/Repost ≠ Endorsement
Greg Otto @gregotto.bsky.social @gregotto from twitter, now on bluesky. Editor-in-Chief at CyberScoop. Host of Safe Mode. Better with words than I am with code.
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
Nicole Beckwith @nicolebeckwith.bsky.social Sr. Manager, Threat Operations @kroger 🍓 CTI, Hunting, Detection Engineering, Insider Risk, Fraud & Forensics 💻 Fmr LE & DFIR for OH & Secret Service TF. #FSD #w00w00 #CFC
Chris Bing @chrisbing.bsky.social Cyber, natsec and foreign affairs. Formers with ProPublica, Reuters and CyberScoop
https://bing-chris.medium.com/how-to-contact-me-d2fd4bd3ed7b
Sam Riddell @riddellsam.bsky.social Senior Analyst at Google Threat Intelligence Group. Focused on info ops & cyber threat intelligence.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
Megan Stifel @megans.bsky.social Mom. Cyber & NatSec policy and law. Not what you might think.
🇺🇸
Shannon Vavra @shanvav.bsky.social National Security & Cybersecurity | Priors: @cnas.bsky.social Fellow, National Security Reporter @thedailybeast.bsky.social, @cyberscoop.bsky.social, @axios.com | Probably in need of covfefe and a snack | shanvav01 on Signal
Sam Sabin @samsabin.bsky.social Axios cybersecurity reporter, taking it day by day ✨ | 📩: sam.sabin@axios dot com, signal: SamSabin.01 (no pitches!), she/her
Chris Wysopal @weld.bsky.social Gray haired gray hat. Co-founder Veracode. Former L0pht security researcher. Builds tools to find and fix vulnerabilities in code at scale.
Whitney Merrill @wbm312.bsky.social I nudge people to care about privacy and security. CPO/DPO. Privacy/infosec lawyer. Hacker. Fighting for privacy, digital civil liberties & the users. Ex @EA @FTC |my views are my own. I used to post on Twitter at @wbm312.
Lee Foster @leefosterintel.bsky.social AI Security / Cyber Threat Intel / Disinformation / Influence Operations. Founder aspectlabs.ai, Adjunct at Johns Hopkins SAIS Alperovitch Institute for Cybersecurity Studies, formerly Director of Influence Ops Analysis at Mandiant. All views my own etc.
Christopher Glyer @cglyer.bsky.social Microsoft Threat Intelligence Center - Former Incident Responder & Chief Security Architect @Mandiant
David Priess @davidpriess.bsky.social Intelligence, geopolitics, and the Arctic | Vice President of Strategy, Emergent Risk International | Senior Fellow, Hayden Center | Former CIA & State Department | Duke poli sci PhD | Author, The President’s Book of Secrets
hakan @hatr.bsky.social reporter covering cyber (both crime and state-sponsored) for Der Spiegel and ZDF, short overview at https://linktr.ee/hakantanriverdi, Signal: hakan.25
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Robert Graham @erratarob.bsky.social @erratarob on the hellscape site
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Dan Black @danwblack.bsky.social Previously Google, NATO, 🇨🇦 Government. Views mine and mine only.
Danny Moore @moore.bsky.social Cyber-warfare | PhD from KCL | Author of 'Offensive Cyber Operations' | Security @ Meta 
Jason Kikta @kikta.net // Making it up as I go
// JHU SAIS @alperovitch.institute adjunct
// @istorg.bsky.social adjunct sr tech advisor
// Former USCYBERCOM/CNMF
// Retired US Marine Corps
// Personal views and invective
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
the grugq @thegrugq.bsky.social 
Alex Ionescu @ionescu.bsky.social Windows Internals Author, Developer, Reverse Engineer, Security Researcher, Speaker, Trainer, and most recently Nation State Hacker.
Core OS Platform Developer at Apple, Hyper-V Vendor at Microsoft, Chief Architect at CrowdStrike and now Director at CSE.
Heather Adkins @argv.bsky.social VP Security at Google. Co-Chair Cybersafety Review Board, Co-Author Building Secure and Reliable Systems. r00t. Medieval historian.
J. A. Guerrero-Saade (JAGS) @jags.bsky.social VP of Intelligence and Security Research, Senior Technical Fellow (AI) @ SentinelOne.
Distinguished Fellow and Adj Professor @ Hopkins SAIS Alperovitch Institute. Three Buddy Problem Co-Host. LABScon Founder, Cyber Paleontologist, Fourth-Party Collector.
Thorin Klosowski @thorinklosowski.com Security and privacy activist at EFF, I work mostly on SSD | this account is mostly shitposts, auto-deletes posts every 30 or so days
Drew Harwell @drewharwell.com tech & society @washingtonpost.com
stories: https://drewharwell.com/
videos: tiktok.com/@drewharwell
+ instagram.com/drewharwell
kate conger @kateconger.com tech reporter for the NYT!
co-author of CHARACTER LIMIT!
signal: kateconger.11
buy our book: https://www.penguinrandomhouse.com/books/737290/character-limit-by-kate-conger-and-ryan-mac/
tour dates & translations: https://linktr.ee/kateconger
Lawfare @lawfaremedia.org Straight-shooting information and analysis at the intersection of national security, law, and policy.
Support Lawfare at https://www.lawfaremedia.org/support
Raphael Satter @raphae.li Say hi: https://raphae.li or on Signal: raphaelsatter.01
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
💗💜💙
Eric Geller @ericjgeller.com Senior reporter at @CybersecurityDive.bsky.social covering all things digital security. I also co-host @hothtakes.bsky.social. | Send me tips: https://ericjgeller.com/contact.html
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
Bob Lord @boblord.bsky.social Cautiously pessimistic, esp. about cyber things.
The owls are not what they seem. 🗻🗻🦉🌲🪵 🍒🥧☕️🍩 🕵🏼♀️ 👍🏻
Also: 🔐🔑🔒
And of course: hacklore.org
Other account: @hacklore.bsky.social
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
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
John Scott-Railton @jsrailton.bsky.social Chasing digital badness. Senior Researcher at Citizen Lab, but words here are mine.
The Citizen Lab @citizenlab.ca We are an academic research unit at the University of Toronto investigating novel threats to democracy, human rights, and global security in the digital ecosystem.
Ron Deibert @rondeibert.bsky.social Director of The Citizen Lab at the University of Toronto's Munk School of Global Affairs & Public Policy
Author of Chasing Shadows https://chasingshadowsbook.ca/ 
Martijn Grooten @martijngrooten.bsky.social Threat researcher, rights supporter, obsessive reader, marathon runner, eternal traveler, serial migrant, music blogger, lapsed mathematician.
https://lapsedordinary.net/
Signal: martijngrooten.37
Sergiu Gatlan @serghei.bsky.social Cybersecurity/tech reporter @BleepingComputer / serghei.ro
Tim Starks @timstarks.bsky.social Senior reporter, CyberScoop, covering spyware, cyber policy and more. Russia-sanctioned. Former Washington Post, POLITICO, CQ Roll Call. @timstarks.02 on Signal. tim.starks@cyberscoop.com. Mastodon timstarks@infosec.exchange, X timstarks, Threads tstarks2.
Matthew Olney @kpyke.bsky.social I'm the Senior Director of Threat Intelligence and Interdiction at Cisco. A host of the Beers With Talos podcast. He/him.
Joe Uchill @joeuchill.bsky.social Potential game show contestant.
Former Axios, The Hill, Passcode. Founder of the Codebook cybersecurity newsletter. Once got lost in a Starbucks.
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
Vince Houghton @intelhistorian.bsky.social Fmr Dir Nat. Cryptologic Museum, NSA. Formerly IntlSpyMuseum; Miami native living in DMV; Author - Nuking the Moon, The Nuclear Spies, and Covert City; has “Grave Lack of Discretionary Judgment”-The Catholic Church; lesser half to @jordanspeak.bsky.social
Joe Devanny @joedevanny.bsky.social Senior Lecturer | National Security & Cyber | Department of War Studies | King’s College London | All views mine, etc.
Dustin Volz @dustinvolz.bsky.social Washington correspondent for The New York Times focused on cyber conflict, digital espionage and intelligence. Prior stops at WSJ, Reuters, National Journal. https://www.nytimes.com/by/dustin-volz
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
Jessica Lyons @jessicalyons.bsky.social Cybersecurity editor @theregister.com Contact me with tips: jessica.lyons@theregister.com or jess.825 on Signal
Mama bear, book worm, outdoor lover, coffee and wine snob. PNW after decades in Santa Cruz but Blazers fan always.
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
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Sean Gallagher @thepacketrat.net Birb stalker. Cat tree. Cyber Threat Researcher. Recovering cyber and natsec reporter. Meme war and US Navy veteran.
@thepacketrat everywhere since 1994. These posts are not my employers’. https://falling-anvil.com
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
SteveD3 (Steve Ragan) @steved3.io Father. Grandpa. Geek. Hacker. Former journalist. Security researcher. CMO @BSidesLV.org Member: Curated Intel 
AJ Vicens @ajvicens.bsky.social Cybersecurity correspondent at Reuters; former Mother Jones, CyberScoop. Will bore you with skateboarding, UFO lore or Denver Broncos minutiae on request. Signal: ajvicens.57, additional contact methods: https://tinyurl.com/47jc45h7
d4rkm4tter @darkmatter.bsky.social Hacker by day... and night
#WiFiCactus | #WiFiKraken
apexstorage.com
ProfDanny @profdanny.bsky.social Technology and risk delivering information security: Professor, PhD, FCIISec, cyber researcher, analyst, consultant, practitioner, father, grandfather.