Warp @warp.dev The open-source agentic development environment, born out of the terminal. Build with agents, locally and in the cloud with Oz.
github.com/warpdotdev/warp
👻 @0x0.sigint.team Security. People matter most. Get off X, fool.
🇬🇧🇨🇦🇺🇦🇩🇪🇫🇷🇳🇱🇦🇺🇳🇿
dmarcian @dmarcian.com We're on a mission to spread DMARC across the globe to make email and the internet safer for all.
Maester @maester.dev Maester is your Microsoft Security test automation framework!
Maester is a PowerShell based test automation framework to help you stay in control of your Microsoft security configuration.
Learn more → maester.dev
Fabian Bader @fabian.bader.cloud #Security #Azure #EntraID #XDR #MDE #Identity #M365 #AD #PKI #KQL
Microsoft MVP
Tweets and opinions are my own
Jim Stevens @jimstevens2001.bsky.social Co-founder of DTRSEC and co-creator of REnigma
working on malware analysis and reverse engineering. dtrsec.com
Uncle Joe @sydseter.com Co-leader OWASP Cornucopia. If you like what we do for open source, visit our code repository https://github.com/OWASP/cornucopia and give us a star ⭐
🌈 «Difference is of the essence of humanity» 🦄 – John Hume
#appsec #owasp #cornucopia #threatmodeling
jamesejr @jamesejr.com Security Engineer @ Discord. Detection & Response Engineering. Previously @ Cloudflare.
Technology, food, travel, and photography. https://jamesejr.com
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."
Dennis Keefe @dkeefe.bsky.social CompTIA Security+ | LPI Linux Essentials | Former Law Enforcement | OSINT Enthusiast | Christ Follower https://www.linkedin.com/in/dkeefe/
Tanisha L. Turner @cybersecdiva.bsky.social Cybersecurity Professional | Malware Researcher | Threat Hunter | <Detection> | SecOps
All Views expressed are my own.
Matthew Gracie @infosecgoon.bsky.social Security Analyst. Panther Modern.
Engineer at Security Onion Solutions.
Professor at Canisius University.
Organizer at Infosec 716 and BSides Buffalo.
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
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
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
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
the grugq @thegrugq.bsky.social 
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Christopher Glyer @cglyer.bsky.social Microsoft Threat Intelligence Center - Former Incident Responder & Chief Security Architect @Mandiant
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.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
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
Taz Wake @tazwake.bsky.social DFIR & Threat Hunting Professional | SANS Course Author - FOR577 Linux IR Class | Certified SANS instructor | Incident Responder | I have no access to DMs.
Craig Williams @craigwilliams.bsky.social I build threat intel stuff.
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
Nathan McNulty @nathanmcnulty.com Loves Jesus, loves others | Husband, father of 4, security solutions architect, love to learn and teach | Microsoft MVP | @TribeOfHackers | 🐘infosec.exchange@nathanmcnulty
Simon Petersen @simonpetersen.net Associate Information Security Consultant at DHL IT Services*.
Danish 🇩🇰 origin - living in Prague 🇨🇿
* I don't speak on behalf of DHL.
https://simonpetersen.net
Maxime Lamothe-Brassard @maximelb.bsky.social Founder at LimaCharlie, cyber security, ex-intelligence/Google/crowdstrike.
Richard Bejtlich @taosecurity.bsky.social Former USAF intel officer. Early info war practitioner. Created GE-CIRT. Mandiant's first CISO. #NetworkSecurityMonitoring for @corelight-inc. Author. Latest books #ad amzn.to/3B2AcMc
Blue Team Con @blueteamcon.com Blue Team Con is an annual cybersecurity conference built for defenders, inclusive of anyone interested in safeguarding organizations.
https://blueteamcon.com
Next Conference:
Training: 10-11 September 2026
General Conference: 12-13 September 2026
Supriya @supriyam.bsky.social Now Google Threat Intelligence & doing fun things at DistrictCon, fmrly GreyNoiseIO and RecordedFuture, SAISHopkins MASCI alumna | ♡s & rts are my own, my employer definitely doesn’t like Taylor Swift that much
Austin Larsen @handle.invalid Principal Threat Analyst - Google Threat Intelligence Group
Allison Nixon @nixonnixoff.bsky.social Chief Research Officer @ Unit 221B
most reliable way to reach me is my company's outreach form on the website
my other urls:
https://infosec.exchange/@nixonnixoff
https://www.linkedin.com/in/allison-nixon-81822124/
don't bother contacting me on twitter
Phil Stokes ⫍🐠⫎ @philofishal.bsky.social macOS security researcher espousing no one's opinions but my own. Dogged follower of #lufc, at least until the world stops going round (IYKYK).
philastokes.com
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
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.
Shane Huntley @shanehuntley.bsky.social Aussie security / tech guy.
Google Threat Intelligence. Co-founder Threat Analysis Group (TAG). Tweets are my own not my employers.
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
Danny Moore @moore.bsky.social Cyber-warfare | PhD from KCL | Author of 'Offensive Cyber Operations' | Security @ Meta 
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.
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
John Scott-Railton @jsrailton.bsky.social Chasing digital badness. Senior Researcher at Citizen Lab, but words here are mine.
David Oxley @oxley.io Senior leader for detection and response at Anduril Industries. @CitizenLab.ca Research Fellow. Former federal agent. Fan of space, books, cyberpunk, sci-fi, espionage history, and storms. Personal account. 🇺🇸 🇺🇦 🇹🇼 #ThreatIntel
Storm chasing 📸 🌪️: @wxdox.com
Christopher Luft @tekgrunt.bsky.social Co-Founder @LimaCharlie.io | Host of The Cybersecurity Defenders Podcast
I am interested in computer science, art & growing my own food. Working to disrupt the way cybersecurity tools and supporting infrastructure are delivered.
Matt Hand @matterpreter.bsky.social Director of Security Research at Prelude💜 | Author of Evading EDR http://nostarch.com/evading-edr 📖 | Security research & windows internals 🦠
AJ King @ajking.io Threat Research at SnapAttack now part of Splunk now part of Cisco / Detection Engineering / Dad | #DetectionEngineering #ThreatHunting #PurpleTeam | Header art from http://art.vx-underground.org.
Katie Knowles @siigil.bsky.social Security Researcher @ Datadog. 🐶 Head in the (Azure) clouds.
Sometimes blogging, always curious. Aim to be, rather than to seem.
Blogs at https://kknowl.es.
Silas Cutler @silascutler.bsky.social You may know me from your server logs.
#Malware, Hacks, Internet Scanning, #CTI
Beau Woods @beauwoods.com hack all the cybers
Patrick Gray @patrick.risky.biz https://risky.biz/
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
InfoSecSherpa 🏔️ @infosecsherpa.bsky.social #Librarian turned #InfoSec & #DataPrivacy practitioner. #Philly area hoagie mouth. InfoSecSherpa and Sherpa Intelligence: Your Guide Up a Mountain of Information! Portfolio: https://linktr.ee/infosecsherpa #GoBirds
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
TechCrunch @techcrunch.com Technology news and analysis with a focus on founders and startup teams.
Got a tip? http://techcrunch.com/tips
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
DylanInfosec🛡️ @attackthesoc.com Dad ⚭ Husband
🏛️ Incident Response, M365 Forensics | Defender XDR & Azure Security | DEaTH ⏳
🏋🏻♂️IronCult 🏕️ForestHermit
https://attackthesoc.com
The DFIR Report @thedfirreport.bsky.social Real Intrusions by Real Attackers, the Truth Behind the Intrusion.
https://thedfirreport.com
DFIR Diva @dfirdiva.bsky.social DFIR Analyst
Blog: https://dfirdiva.com/
Free & Affordable Training (DFIR, OSINT, Cybersecurity): https://training.dfirdiva.com/
Community Events: https://events.dfirdiva.com/
Curated List of Discounts: https://training.dfirdiva.com/current-discounts
mthcht @mthcht.bsky.social Threat Hunting - DFIR - Detection Engineering
🐙 https://github.com/mthcht
🐦 https://x.com/mthcht
📰 https://mthcht.medium.com
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
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Dave Shackleford @daveshackleford.bsky.social SANS, IANS, Voodoo Security. So many other things, too. 
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
Bryson Bort 🦄🌴 @brysonbort.bsky.social 🦄
Mike Cohen @greatcoffee.org Mike is a digital paleontologist working on velociraptor
DDI Training @digitaldefenseinstitute.com Advanced Cybersecurity Training provider focusing on security operations, threat hunting, digital forensics, and incident response. Learn more: https://digitaldefenseinstitute.com
Mike Saunders 🇺🇦 @hardwaterhacker.bsky.social Photographer. Lover of the outdoors. Musician.
Red Siege Principal Consultant so I can pay for my hobbies.
#PhotographersUnited <- Check out this great community!
IG: https://www.instagram.com/hardwaterhacker/
Andrew Case @attrc.bsky.social Volatility Core developer, Dir. of Research Volexity, LSU Cyber
Ken @stoner.dad 
Jamie Levy 🦉 @gleeda.bsky.social @volatilityfoundation.org Core Dev | Art of Memory Forensics co-author | DFIR trainer and enthusiast | Director of Adversary Tactics @huntress.com
Hexacorn @hexacorn.bsky.social Red Brain, Blue Fingers
Malware Analysis, Reverse Engineering, Threat Hunting, Detection Engineering, DFIR, Security Research, Programming, Curiosities, Software Archaeology, Puzzles, Bad dad jokes
https://www.hexacorn.com/blog/
hexacorn@infosec.exchange
LimaCharlie @limacharlie.io Security tools and infrastructure on-demand. Use LimaCharlie to automate and manage security operations at scale.
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
Steve YARA Synapse Miller @stvemillertime.bsky.social threat intelligence @google
writing & sharing on adversary tradecraft, malware, threat detection, ics/ot + cyber physical intel, and of course all things #yara
Matthew Kennedy @matthewkennedy.bsky.social Manager at Microsoft Threat Intelligence Center (MSTIC). Adjunct Faculty at Georgetown University. Penn State Alum. Tweets are my own.
Will Nuland @willnoodles.bsky.social Trust Investigations & Intel; Dad; Rehabilitating grump; Tech company badge collector. Currently Director @ LinkedIn; Former Twitter, FB, Dell SWRX, VRSN. Here for the cyber 
Dan Black @danwblack.bsky.social Previously Google, NATO, 🇨🇦 Government. Views mine and mine only.
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Greg Foss @gregfoss.com Security Research Leader @ Datadog
Views are strictly my own
Mehmet Ergene @cyb3rmonk.bsky.social https://academy.bluraven.io
Threat Hunting & Research, Detection Engineering | Microsoft Security MVP
#KQL #DFIR #DataScience
All is one.
Opinions are my own
http://posts.bluraven.io
https://github.com/Cyb3r-Monk/Threat-Hunting-and-Detection
tuckner @johntuckner.me Working on finding bad software extensions.
Matthew Conway @mattreduce.com 🔍 Threat Intelligence @ Remitly
✍️ CTI newsletter and blog @sourcesmethods.com
Lennart Koopmann @lennart.0x58ed.com Building @nzyme.org // Leichtes Wirkmittel 30+
Houston, TX, USA
KJ5KRF
signalblur📡🛸 @signalblur.bsky.social Cloud Security Researcher
Founder of https://magonia.io
#Cloud #Container #NSM #Malware #CTI #ThreatIntel
UFO Enthusiast
Opinions are my own. He/Him
The Taggart Institute @taggartinstitute.org The Taggart Institute exists to provide low-cost, high-quality technology training to everyone in a welcoming, supportive community.
We believe you can succeed. The hardest step is the first one. Join us and find out.
https://taggartinstitute.org
Christopher Peacock @securepeacock.bsky.social I find weird things on networks.
#PurpleTeam | Ex Raytheon MSSP, SCYTHE, & GD | Taught at BlackHat & DEFCON | #100DaysofSigma | Keep exploring, keep learning, and stay curious.
Chris Sanders 🔎 🧠 @chrissanders88.bsky.social Digital Forensic Analyst, Researcher, Author
Ed.D.
Founder Applied Network Defense and Rural Tech Fund
Former Mandiant, InGuardians, DoD
Author: Intrusion Detection Honeypots, Practical Packet Analysis, Applied NSM
Richard Davis @davisrichardg.bsky.social DFIR Investigator at Microsoft and part-time YouTuber. Follow @13Cubed for 13Cubed updates.
13Cubed @13cubed.bsky.social The official Bluesky account for 13Cubed. Follow @davisrichardg for my personal account.
Gerald Auger, PhD @geraldaugerphd.bsky.social Passionate About Cybersecurity | Sharing Passion to Help Individuals Discover, Engage, and Level Up A Cyber Career | Tweets Sharing Cyber Tips, Tools, Love💙 Go to SimplyCyber.io
Adam Harrison @harrisonamj.com Digital Forensic Investigator, Incident Responder, HAM, ambassador for flip-flops and purveyor of fine Dad Jokes. #DFIRFit
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
Matt Bromiley @bromiley.io ⚙️ AI Security R&D @ Prophet Security
🎓 IR/TH/Incident Management Instructor
🎙️ Frequent Guest on Cybersecurity Defender's Podcast
🔍 Where to Find Me: https://github.com/bromiley
Markus @mascho.bsky.social 💻 Blue Team Training @ Blue Cape Security
Carlos Perez @thedarkoperator.bsky.social - Cybersecurity since 1998
- Information Security jack of all trades
- Hacker
https://www.darkoperator.com