DomainTools @domaintools.bsky.social A global leader for internet #intel that enables security practitioners to proactively defend their organization in a constantly evolving threat landscape.
Cindʎ Xiao 🍉 @cxiao.net professional strings(1) operator
rust reverse engineering training -> @decoderloop.com
she/her or they/them
🏳️🌈😎
personal account! views are mine.
en_CA/zh_CN/fr_CA
https://cxiao.net
https://infosec.exchange/@cxiao
Simon Rodier @monsrodier.bsky.social Journaliste TV5Monde - Afrique - Hoop (KD believer)
antibot4navalny | bot blocker | блокировщик ботов @antibot4navalny.bsky.social Exposing troll farms: 🇷🇺🇺🇦 and beyond
Cited by: @washingtonpost.com @nytimes.com @financialtimes.com @CNN.com @Wired.com @afpfactuel.bsky.social @LeMonde.fr @SZde.bsky.social @TheTimes.com @NBCnews.com @EFE.com
𝕏 / 🐦: antibot4navalny
Punsandrosess @punsandrosess.bsky.social Words are my playground and I refuse to let a single pun slide...queer, #infosec nerd, #breakingbadness host, @punsandrosess@infosec.exchange on Mastodon
State of Statecraft Conference @what-is-sos.bsky.social Official account of the State of Statecraft conference.
Coming October 22, 2026 - Brussels, Belgium
http://stateofstatecraft.com
#what_is_sos
Instacyber @instacyber.bsky.social Reveals APTs with one easy application! | Artificial amateurs, aren't at all amazing // Analytically, I assault, animate things
Microsoft Threat Intelligence @threatintel.microsoft.com We are Microsoft's global network of security experts. Follow for security research and threat intelligence. https://aka.ms/threatintelblog
Saher @saffronsec.bsky.social Espionage Threat Research @ Proofpoint. Former @virtualroutes.bsky.social fellow. @warstudieskcl.bsky.social alum. She/her
Kate Starbird @katestarbird.bsky.social Researcher of online rumors & disinformation. Former basketball player. Prof at University of Washington, HCDE. Co-founder of the UW Center for an Informed Public. Personal account: Views may not reflect those of my employer.
Anna Merlan @annamerlan.bsky.social Journalist at Mother Jones and elsewhere, author, writer of social media posts on micro-blogging sites. Tips to Amerlan@motherjones.com or on Signal, username annamerlan.30
E. Rosalie @erosalie.infoepi.com Public health + national security • Johns Hopkins alum • Tracking mysterious weaponized pigeons and FIMI
Mark Kelly @mkyo.bsky.social 🇨🇳 Threat Research at Proofpoint
Judd Legum @juddlegum.bsky.social I write Popular Information, an independent newsletter dedicated to accountability journalism. | judd@popular.info | Signal: juddlegum.47
Popular.info
NewsGuard @newsguard.bsky.social Reporting on false claims, journalism, and how unreliable information spreads online. Subscribe to our newsletter, Reality Check: https://www.newsguardrealitycheck.com.
Till Eckert @tilleckert.com investigative journalist @correctiv.org • Burns Fellow '25 @propublica.org • covering national security, hybrid warfare & influence operations • Signal: tilleckert.90 🔦
tilleckert.com
Sarah Thust @timetodiscover.bsky.social Journalistin bei correctiv.org/faktencheck | Porträt von Ivo Mayr
Hier privat mit den Themen: Faktencheck, Osint, Medienkompetenz, Telegram, Kambodscha und Frankreich
Alexej Hock @alexejhock.bsky.social Journalist @correctiv.org | Ex @welt @investigativ_de | Co-Founder Straßengezwitscher @streetcoverage | Threema H5CPTYB8
Max Bernhard @mxbernhard.bsky.social investigative journalist @ CORRECTIVㅣDowJones & WSJ alumㅣprevious work Lighthouse Reports, DW, Guardian, Wired and othersㅣOSINT, Tech, AI
Nathan Patin @nathanpatin.bsky.social digital investigator // former @Bellingcat member // former adjunct at Georgetown // https://signal.me/#eu/NgJup15Ma2qMeT4LrMxTSoEjms9VQWtnut6sXW7CNidB5gEkzXJKlKpHsGXzQ9Eq
Pasquale Stirparo 🇺🇦 🇪🇺 @pstirparo.bsky.social Founder @ RationalEdge
#ThreatIntel #ICS #DFIR; ''Learning iOS Forensics'' author;
#BSidesZH #PIVOTcon org.
@pivotcon.bsky.social
https://pstirparo.ch
https://rationaledge.io
Related interests/obsessions:
#ThreatHunting #CTI #YARA #CriticalThinking #Books
@matthieufaou.bsky.social @matthieufaou.bsky.social Malware Researcher @ @esetresearch.bsky.social
clem @nodebreak.bsky.social Influence Operations @RecordedFuture
David Agranovich @dagrano.bsky.social Fmr. NSC Director, Intelligence. Director, Threat Disruption @ Meta. Rescue Dog Pilot, Flight Instructor, Former Big Hair Practitioner 🏳️🌈
Elise Thomas @elisethomas.bsky.social Senior OSINT Investigator at @cen4infores.bsky.social. Opinions, hot takes, mistakes all my own. https://www.clippings.me/elisethomas
Colin Gerard @colingerard.bsky.social Personal account
Head of Threat Analysis @viginum.bsky.social
PhD in Geopolitics @univ-paris8.fr
Researcher @ifgeopolitique.bsky.social
Russian FP, IOs, OSINT investigations
gnida project @gnidaproject.bsky.social Всероссийский научно-исследовательский институт гнид
gnidaproject.substack.com
Greg Lesnewich @greg-l.bsky.social oh great, now I’m on bluesky 
PIVOTcon @pivotcon.bsky.social Threat Research Conference in Malaga, Spain, 6-8 May 2026
#StayTuned #ComingSoon #PIVOTcon #PIVOTcon26
https://pivotcon.org
Bad APT Advice @badaptadvice.bsky.social Phone it in
Christopher Miller @christopherjm.ft.com Chief Ukraine correspondent for the Financial Times. 16 years living and reporting in Ukraine. https://www.ft.com/christopher-miller
Author of the book, THE WAR CAME TO US, published by Bloomsbury: https://www.amazon.com/dp/139940685X
David Salinas @threatintel.mx Pronounced "Daveed"
Él | He/Him
Co-Founder & CISO @ Digital Keeper
#FSD
mastodon: @davidgeek@infosec.exchange
jeFF0Falltrades @jeff0falltrades.bsky.social Security, Malware, Software, and Memes: These are a few of my favorite things.
https://www.youtube.com/@jeFF0Falltrades
https://github.com/jeFF0Falltrades
JP Castellanos @dragonkin37.bsky.social Fmr DoD CND Threat Hunter, Director of Cyber Threat Intel
@Binary_Defense, Gamer, Geek, Weeb, & Geopolitics opinions are my own. #WeAreNAFO #FUZZYSNUGGLYDUCK
Sergio Caltagirone @intel.bsky.social Georgia Tech Professor. Cyber threat intelligence and cybersecurity professional - former NSA, Microsoft, and Dragos. President of the Threat Intelligence Academy. #FSD 🦆 Formerly @cnoanalysis on Twitter
Paul Burbage @hexlax.bsky.social Co-Founder at MalBeacon.com | Board member at BSides Charleston.
Jon Condra @jcondra.bsky.social Sr. Director of Current Intelligence & Hybrid Threats @ Recorded Future. China, Ukraine, general geopolitics & cyber. Opinions my own. Reposts not endorsements.
🇺🇦 Xorhex 🇺🇦 @xorhex.bsky.social 
Tay @taylorwp.bsky.social Until we dream of life and life becomes a dream
Nick Attfield @nickattfield.bsky.social Threat Research @ Proofpoint | Views are my own.
Brian Liston @brianjliston.bsky.social Senior Threat Intelligence Analyst at Recorded Future
Analyzing Russia IO, Ukraine, election security
Cited in NYT, FT, Politico, Axios, NBC, France 24
GSPIA class of 2017
Jason Killam @suspiciouslink.bsky.social Detection Engineer @ Red Canary
https://github.com/killamjr
Digital Monet @artaggi.bsky.social Binary and art recovery specialist. Aka “The White Glove”
Eliot Higgins @eliothiggins.bsky.social Founder and creative director of Bellingcat and director of Bellingcat Productions BV. Author of We Are Bellingcat.
@thellmic.bsky.social @thellmic.bsky.social Threat Intel, MN. All opinions are my own #YNWA
Brian Kime @rhymeswithtime.bsky.social 
Sean McNee @seanmcnee.bsky.social VP of Research & Data at DomainTools
Lover of Mac & Cheese
Hater of Phishing, Malware and Spam
It's always DNS
Marc @ctimarc.bsky.social 
Charles @charles.dardaman.com AI | Hacking | Security | Malware | Founder/CTO (acq.) | CS PhD @UT_Dallas
Brandy Zadrozny @brandyzadrozny.bsky.social Reporter lady @ms.now
Signal username: brandyzadrozny.53
Email from a non-work account: brandy.zadrozny@ms.now
developing valhalla (techno-progressive) @valhallaresearch.net if we're all cooked, I'm at least gonna make it spicy.
newsletter: newsletter.valhallaresearch.net
Ben Goerz @bengoerz.bsky.social InfoSec Janitor. #fsd
Christopher Glyer @cglyer.bsky.social Microsoft Threat Intelligence Center - Former Incident Responder & Chief Security Architect @Mandiant
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
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
SwitHak (👁️) @swithak.bsky.social French Security Analyst (Fmr TelcoSec)
Cyber / Security / Geopolitics & and others.
Personal Account, My opinion!
Lang: ENglish & FRench
LP @jotunvillur.bsky.social Ultrarunner with a powerlifting problem. Sometimes I do cybersecurity. 
coleman kane @malware.re https://class.malware.re creator, random open-source contributor, IRL "dog and dad" meme
Blog: https://blog.malware.re/
Ellen Nakashima @ellenwapo.bsky.social Intelligence and national security reporter at The Washington Post. Reach me securely on Signal at Ellen.626.
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.
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
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
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
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
Olga Belogolova 🌻 @olgs7.bsky.social Director, Emerging Tech Initiative at SAIS; Professor at the Alperovitch Institute on disinformation/influence ops. SAIS & BU alum. Former IO Policy Lead at Meta, former journalist at Atlantic Media.
Adam Rawnsley @arawnsley.bsky.social Dog shepherd.
Nathaniel Gleicher @ngleicher.bsky.social Global head of security policy and counter-fraud at Meta. Countering adversarial threats. Previously Illumio, NSC, DOJ. He/him. Dreaming of fall in the green mountain state.
Renee DiResta @noupside.bsky.social 🌐Studies influence, propaganda, platform design@Georgetown
✍🏼Lawfare,The Atlantic, Substack/Ghost Newsletter (signup on my site if you want Ghost)
📕Invisible Rulers: The People Who Turn Lies Into Reality (invisiblerulers.com)
🦹🏻♀️Twitter Files supervillain
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
Sherrod @sherrod.bsky.social It’s me. Sherrod DeGrippo 
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.
Drunk Binary @drunkbinary.bsky.social Senior Principal Adversary Hunter @dragosinc, Army Veteran,
Cocktail Scientist, APT Researcher | #FSD
https://infosec.exchange/web/@DrunkBinary
https://twitter.com/DrunkBinary
BogeyBackdoor @bogeybackdoor.bsky.social I break into banks, spy on threats, drive a golf cart and play Lorcana
VGhlIEFuYWx5c3QgZm9ybWVybHkga25vd24gYXMgWW9zaGk=
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 Hegel @hegel.bsky.social Distinguished Threat Researcher, SentinelLABS Research Lead @SentinelOne. Nation-state operations, research systems & applied AI for threat intelligence. Find me at https://TomHegel.com
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.
tlansec @tlansec.bsky.social Threat Intel @volexity.com n stuff.
London, UK.
Zach Dorfman @zachsdorfman.bsky.social Washington Post National Security Reporter. Past features in Politico, Rolling Stone, Wired, Foreign Policy. Working on a book on the history of deep cover for Penguin-Random House.
It’s always Berlin 1989 somewhere. Signal: zsd.19
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.
Christopher Vega @thevega.bsky.social I do threat intel things. Former Activision Blizzard // Epic Games. Currently putting the G in 5G. Kinda passionate and extremely okay. Opinions are my own. He/him/#FSD 🦆
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.
Active Measures, LLC @activemeasures.bsky.social Active Measures, LLC is a full service research and writing firm. For details see activemeasuresllc dot com or reach out to walkin [at] activemeasuresllc [dot] com.
CYBERWARCON @cyberwarcon.bsky.social CYBERWARCON is a one-day conference in Arlington, VA focused on the specter of destruction, disruption, and malicious influence on our society through cyber capabilities.
cyberwarcon.com
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
Chris Krebs @thekrebscycle.bsky.social Aka @c_c_krebs over there 
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.
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
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.
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
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
Thomas Rid @ridt.bsky.social @ridt on X
Rowdy @r0wdy.sk33t.expert electric callboy, bad golfer
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
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.