Jeff Stein @jeffstein.bsky.social Reporter @ The Washington Sun. Formerly chief econ correspondent @ The Washington Post. Founder Ithaca Voice. Writing a biography on Bernie Sanders.
Charlie Warzel @cwarzel.bsky.social Writer. Host of Galaxy Brain, the podcast. Never bet against the dumbest outcome. @cwarzel.92 on signal if you have a tip. I have a podcast so please like and subscribe.
Luke Kennard @lukekennard.bsky.social Novelist, poet, lecturer at University of Birmingham. Latest novel BLACK BAG out March 12th 2026.
https://linktr.ee/lukekennard
Andreas Lindh @andreaslindh.bsky.social "A garden of potential submerged in the rain."
Works in computer and systems security.
Talks about politics, culture, and Arsenal FC.
Makes music as https://d4rkstar.se
No one is free until all are free.
Scott Galloway @profgalloway.com Professor of Marketing at NYU Stern School of Business, serial entrepreneur, and host of the Prof G and Pivot Podcasts.
Raphael Satter @raphae.li Say hi: https://raphae.li or on Signal: raphaelsatter.01
Tim Marchman @timmarchman.bsky.social I’m an editor at WIRED and have previously written and edited for a number of places. Timothy_marchman@wired.com. Signal me at timmarchman.01. I periodically delete all my posts.
Katie Drummond @katie-drummond.bsky.social Global Editorial Director at WIRED.
Board member @freedom.press
Speaker at UTA
Jon McGregor @jonmcgregor.bsky.social I write novels and stories . (Recentlyish: Lean Fall Stand.)
There is a Substack: https://classnotesbyjonmcgregor.substack.com/
Also learning Dutch - kom maar bij mij en nederlands met me spreken, alstublieft x
Kurt Opsahl @kurtopsahl.bsky.social Counsel at RCJ Law, former Deputy ED and GC of EFF, now EFF Special Counsel, president SRLDF, board emeritus USENIX, advisor Open Archive, former Technical Advisory Council CISA. Skeets are my own.
Rhianna Pratchett @rhi.bsky.social Writer of games, books, TV, film and comics. Co-Director of Narrativia. Cat Spooner. Flibbertigibbet. https://rhiannapratchett.com
Orin Kerr @orinkerr.bsky.social Professor, Stanford Law School.
Senior Fellow, Hoover Institution.
Author, The Digital 4th Amendment:
https://www.amazon.com/Digital-Fourth-Amendment-Privacy-Policing/dp/0190627077/ref=tmm_hrd_swatch_0
Brad Heath @bradheath.bsky.social DC reporter for Reuters on crime, justice and investigations. Data, documents and "convoluted KGB style back-door" stuff. Lawyer, but not yours. 202-527-9709, brad.heath@tr.com
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
By Cory Doctorow (GPG 0xBF3D9110957E5F4C) @doctorow.pluralistic.net I post long threads. Writer (sf novels, etc); blogger (pluralistic.net); activist (eff.org). Latest book: "The Reverse Centaur's Guide to Life After AI" Buy my books (DRM-free!) at craphound.com/shop.
Joshua J. Friedman @joshuajfriedman.com Welcoming media and government (and everyone else!) to Bluesky.
Formerly of The Atlantic, Boston Review.
DeFlock Redmond @deflock-redmond.bsky.social Pushing back against mass surveillance. Based in Redmond, WA.
Cancel Flock! 🚫
Ban ALPRs! 🚫
Petition: ✅ change.org/deflock-redmond
Learn more: ℹ️ deflock.org
Drew Harwell @drewharwell.com tech & society @washingtonpost.com
stories: https://drewharwell.com/
videos: tiktok.com/@drewharwell
+ instagram.com/drewharwell
Vincenzo Iozzo @vinceiozzo.bsky.social 
Joe Tidy BBC News @joetidy.bsky.social Cyber Correspondent, BBC News. Author of Ctrl+Alt+Chaos. I cover cyber security, online safety, crypto, AI, social networks and everything 💻📱📡. Global news mainly. DMs always open for tips/ feedback.
Jason Koebler @jasonkoebler.bsky.social Journalist @404Media.co
Signal: jason.404 // email: jason@404media.co
Patrick Howell O’Neill @patrickhowelloneill.com Journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/authors/AXb8dLPHBFc/patrick-howell-oneill
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
David Buchanan @retr0.id reverse engineering, cryptography, exploits, hardware, file formats, and generally giving computers a hard time
Fedi: @retr0id@retr0.id
Macroblog: https://www.da.vidbuchanan.co.uk/blog/
Katie Moussouris (she/her/she-hulk/she-ra)🌻 @k8em0.bsky.social Founder & CEO LutaSecurity @payequitynow MIT&Harvard visiting scholar, @MasonNatSec fellow, 1/2 Chamoru, 1/2 Greek all-American hacker
Joseph Menn @joemenn.bsky.social Washington Post alum covering hacking, disinformation and what’s left of privacy. Author of books on the Cult of the Dead Cow, organized criminal hacking, and Napster. Pulitzer co-finalist 2024. Signal joemenn.01
Dmitri Alperovitch @dmitri.silverado.org Geopolitics, Russia, China, Cyber
Chairman @silverado.org
Author of WorldOnTheBrink.com
Host GeopoliticsDecanted.com podcast
Founder Alperovitch Institute for Cybersecurity Studies at Johns Hopkins SAIS
Co-Founder CrowdStrike
@DAlperovitch elsewhere
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
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
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.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. 🏳️🌈
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
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
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
Ellen Nakashima @ellenwapo.bsky.social Intelligence and national security reporter at The Washington Post. Reach me securely on Signal at Ellen.626.
Patrick Gray @patrick.risky.biz https://risky.biz/
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.
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
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
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Joe Slowik @pylos.co Threat Intel / CTI / OT / ICS / Critical Infra stuff along with other things. I genuinely care, and wish others did too.
Website: pylos.co
Training/Consulting: paralus.co
Horkos @wylienewmark.bsky.social waking up everyday in a full sprint. cyber(punk) & counterintelligence. bloody inertia interspersed with bouts of bloody frenzy. i see kanly today in everything.
#FUZZYSNUGGLYDUCK
opinions are my own.
Łukasz @maldr0id.bsky.social Military-grade reverse engineer @ Google, working on Android malware
Got mistaken for a member of Project Zero once.
Everything here is my own opinion
he/him ✨🌈🦄
gab 🇺🇦🇵🇸 @handle.invalid fka @gabbyroncone on twitter. mission tech lead for RU & Eastern European APT ops @Google. views expressed here are mine, not my employer’s. she/her.
Tom Uren @tom.risky.biz Author of the Seriously Risky Business cyber security newsletter
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.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
Selena Larson @selenalarson.bsky.social loves dogs, sports, memes. she/her. podcaster. "bluesky's humblest resident nailfluencer 💅" - Jerry
my heart is in the west 🌵🌊 views mine.
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employer's
I did a TED talk once
Max Smeets @maxwsmeets.bsky.social Author of No Shortcuts & Ransom War
Co-director Virtual Routes (https://virtual-routes.org/), previously ECCRI
Managing Editor Binding Hook (https://bindinghook.com)
Senior Researcher, ETH Zurich
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
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
Lea Kissner @leak.bsky.social Security, privacy, respect. Was the Twitter CISO until it was terrible. Now LinkedIn CISO. they/them
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.
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.
Danny Moore @moore.bsky.social Cyber-warfare | PhD from KCL | Author of 'Offensive Cyber Operations' | Security @ Meta 
Alec Muffett @alecmuffett.bsky.social everybody deserves good security.
https://alecmuffett.com/about
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."
Lily Hay Newman @lhn.bsky.social Security reporter for WIRED Magazine. she/her/my man. Signal +1 (347) 722-1347
Glenn @ntkramer.bsky.social Elder Millennial | 💼 Cybersecurity | I ask 'why?' a lot | Pro Oxford Comma | Fix it! | He/Him | #BLM | Views are my own.
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
Lou @loustella.com Threat Researcher
NJ->TX->PA
Contains Multitudes.
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
Daniel Gordon @validhorizon.bsky.social Thought Trailer, Cyber Threat Intel, DFIR. He/Him. Bucketing, sharing, and bacon-saving as a service. https://validhorizon.medium.com/
Dave Wilburn @davemwilburn.bsky.social Recovering infosec engineer, machine learning for infosec, sailor, news junkie, threat intel consumer, deep statist. All opinions are mine. Also see my account on Mastodon/Fediverse, @davemwilburn@infosec.exchange
Sean Lyngaas @snlyngaas.bsky.social Cybersecurity reporter, CNN. Signal +1-202-355-8471 or SNLyng.11. sean[dot]lyngaas@cnn[dot]com|slyngaas@proton[dot]me
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)
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.
GreyNoise @greynoise.io GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
Barry Dorrans @blowdart.me Security Curmudgeon for Microsoft .NET
Do you really think work wants my social media opinions?
Not nice, but kind - @medus4.com
🇮🇪 🇬🇧 🇺🇸 
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
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Rowdy @r0wdy.sk33t.expert electric callboy, bad golfer
SteveD3 (Steve Ragan) @steved3.io Father. Grandpa. Geek. Hacker. Former journalist. Security researcher. CMO @BSidesLV.org Member: Curated Intel 
Andrew Couts @couts.bsky.social Security & Investigations Director at @WIRED.com. Send tips and/or dog pics.
Signal: couts.01
Kevin Collier @kevincollier.bsky.social I cover digital threats for NBC News. Tip me! @kevincollier.01 on signal, kevin.collier@nbcuni.com. NYC, from West Virginia.
Christian Vasquez @chrismvasq.com hi chat, im a US-based freelance journalist covering tech and cyberspace // focus = h4x0rz + infrastructure + policy // priors:
cyberscoop, e&e news, politico
signal: chrismvasq.42
https://tips.hushline.app/to/chrismvasq
Vern McCandlish @malanalysis.bsky.social A #DFIR, #infosec, #dadjokes, #scifi, #books, #rpg, #ttx, #malware, elder #genx, and #gaming nerd. AKA an elder geek. Retired #leo. Retired from #infosec in #OT now too.
Kindness first is useful but telling off toxic folks is on my response spectrum too.
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/ 
Ciaran Martin @ciaranm.bsky.social AI slop cannon
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
Mike Sager @mikesager.net CISO @ New Harbor
Security, rock and roll, dad jokes. Fan of The National and The Nationals. Former CTO at EMILY’s List.
msager.25 on Signal
Half awake, in a fake empire.
I have friends everywhere.
He/Him
mike@crabstrike.com
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.
Matt Linton @amuse.bsky.social @0xMatt on Twitter
Rescue, DFIR, Cello and Birds
📎🇺🇦🌻 ginger-hax🌻🇺🇦🎃 @ginger-hax.bsky.social Dark beers. Dark whiskeys. Fast music. Fast cars.
Computers. BBQ. Photography. USMC veteran.
🫥Signal - ginger_hax.69
rh;pd
#w00w00
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.
Joseph Lorenzo Hall, PhD @josephhall.org Astrophysicist turned advocate; guiding the globe to a safer, stronger Internet. Distinguished Technologist @internetsociety.org, https://josephhall.org/, (former CDT, NYU, Princeton CITP, Berkekey iSchool/Astro)
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Jeffrey Vagle @jvagle.me Law professor | Privacy, AI*, and Technology & Society | Veteran | Offering bespoke mentor-mentee relationships | There is music yet to play | https://tractatus.org
Kenn White @kennwhite.bsky.social cryptography • neuro • cloud • biscuits
ORD-DCA-NYC-BCN ✈️
kennwhite@mastodon.social
nsqe @nsqe.bsky.social Head of Privacy @Incode. Board member @ Engine.is. Does the infosec law stuff too. Queer. Dorky. Lawyer, not really searching for redemption. @nsqe basically everywhere.
Be less toxic on bsky challenge, difficulty level pretty easy actually