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
Dirk-jan @dirkjanm.io Hacker at outsidersecurity.nl. Researches Entra ID, AD and occasionally Windows security. I write open source security tools and do blogs/talks to educate others on these topics. Blog: dirkjanm.io
Tailscale @tailscale.com Your private programmable network.
goggan @goggan.bsky.social 
Christopher Glyer @cglyer.bsky.social Microsoft Threat Intelligence Center - Former Incident Responder & Chief Security Architect @Mandiant
Rudy Ooms | MVP @call4cloud.nl {"Title":"Microsoft MVP","Talks About":"Intune, Autopilot, MMP-C ","Function":"Master Chief Content creator PMPC","Blog":"https://Call4cloud.nl"}
Tom Uren @tom.risky.biz Author of the Seriously Risky Business cyber security newsletter
Fabian Bader @fabian.bader.cloud #Security #Azure #EntraID #XDR #MDE #Identity #M365 #AD #PKI #KQL
Microsoft MVP
Tweets and opinions are my own
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
BSides Las Vegas @bsideslv.org BSides Las Vegas will take place August 3-5, 2026
Las Vegas · bsideslv.org
HD Moore @hdm.io runZero & Metasploit
Joost Gelijsteen | MVP @mdmlab.nl | #MSIntune #MVP| #Security | https://joostgelijsteen.com
attacus || Lilly Ryan @attacus.net Computational entomologist, privacy enthusiast, historian. Perpetually raging against the ghost in the machine.
Mastodon: @attacus@aus.social
👁 Digital Rights Watch | 🎙 Byte Into IT on 📻 3RRR FM | 🐍 PyCon AU
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
Jeremy Kirk @jkirk.bsky.social Okta Threat Intelligence. Personal account. Interests: Cyber threat intelligence, OSINT, data breaches, AI. Formerly intel analysis @ Intel 471. jeremykirk.com
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
Merill Fernando 💚 @merill.net Product Manager @microsoft | Creator of bluesky.ms • cmd.ms • idPowerToys.merill.net • Graph X-Ray • 🇦🇺 • 🇱🇰 • Posts my own
http://youtube.com/@merillx
Sign up to my newsletter https://entra.news
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
the grugq @thegrugq.bsky.social 
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
Michael Epping @michaelepping.com Senior Product Manager in the Identity and Network Access Division at Microsoft. Opinions are my own.
@csirac2.bsky.social @csirac2.bsky.social 
Duncan "Klaxon" Jepson @duncanjepson.bsky.social 
Topy @t0py.bsky.social Hacker. Breaker. Lock Picker. Physical Security Enthusiast. Photography. HackHouse. OzSecCon founder. Curious. IBM Z9 Owner. Warranty Void If Removed.
Formerly @Infosecfriends on Twitter.
https://hackhouse.org
0patch by ACROS Security @0patch.bsky.social Tiny security patches for Windows and 0days. No reboots, no restarts.
Steve Cooper @blueteamsteve.bsky.social Building a detection engineering platform for ai-native cyber teams
HaxRob @haxrob.net Telco / mobile and IoT security.
Surfing the information super highway one keystroke at a time.
https://haxrob.net
Larry Pesce @haxorthematrix.bsky.social Hacker of stuff, builder of things.
Paul Asadoorian @paulasadoorian.bsky.social Founder of Security Weekly, Principal Security Evangelist at Eclypsium
Team Cymru - S2 Threat Research @teamcymrus2.bsky.social Follow us for the latest blogs and IOCs from Team Cymru's S2 Threat Research team.
PentesterLab @pentesterlab.com We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!
Andy Robbins @andyrobbins.bsky.social aka wald0
CrikeyCon @crikeycon.bsky.social 
AND!XOR @andnxor.bsky.social We make stuff. We drink beer. In no particular order. #mattdamon
metlstorm @metlstorm.risky.biz Unix berserker, retired hacker-con organiser (Kiwicon!) and now technology-editor-slash-sysadmin-janitor at Risky.biz.
Was @metlstorm on Twitter, am metlstorm@infosec.exchange on Masto. - C Carl Flanagan @charliebacon.bsky.social IT Director in K-12 education | Lover of tech, problem-solving, and good food 🥓 | Advocate for secure, efficient, and creative IT solutions | Sharing thoughts on tech, education, and the occasional recipe. #EdTech
Patrick Gray @patrick.risky.biz https://risky.biz/
Lukasz Gogolkiewicz @synick.bsky.social cyber guy, advocate for diversity in tech, mentor, adventurer, and woodworker...
Matthew Flanagan @mattimustang.com Director and Principal Cyber Security Consultant @cybliminal.com
cybliminal @cybliminal.com A boutique, threat informed, defence focused cyber security company.