Brett @brettcallow.bsky.social Managing Director, Cybersecurity & Data Privacy Comms @ FTI Consulting
BleepingComputer @bleepingcomputer.com Breaking cybersecurity and technology news, guides, and tutorials that help you get the most from your computer. DMs are open, so send us those tips!
Jeff Moss @thedarktangent.bsky.social thedarktangent@defcon.social
Larry Pesce @haxorthematrix.bsky.social Hacker of stuff, builder of things.
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
Wild West Hackin' Fest @wildwesthackinfest.bsky.social Join us for Wild West Hackin' Fest - Deadwood 2026! Con: Oct. 7-9, 2026, Pre-Con Training: Oct. 6-7, 2026
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
David (DWIZZZLE) Weston @dwizzzle.bsky.social Corporate Vice President, OS Security and Enterprise @Microsoft
Paul Rascagneres @r00tbsd.bsky.social Lord of Loaders at Volexity
TraceLabs @tracelabs.bsky.social NFP with the mission of #crowdsourcing OSINT to help find #missingpersons while training members in the tradecraft of #OSINT | Contact us at info@tracelabs.org
| Visit our site for more info and Discord link: tracelabs.org
Robert Graham @erratarob.bsky.social @erratarob on the hellscape site
Microsoft Security Response Center @msrc.microsoft.com We are the Microsoft Security Response Center. To report security vulnerabilities or abuse in Microsoft products, visit http://microsoft.com/en-us/msrc.
HackerOne @hacker0x01.bsky.social The Only official HackerOne bsky account.
Peace of mind from security's greatest minds.
#HackForGood
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Metasploit @metasploit-r7.bsky.social Official account of the Metasploit Project, part of the Rapid7 family.
Mastodon: @metasploit@infosec.exchange
Slack: http://metasploit.com/slack
chris.knows.html @chrisknowshtml.bsky.social i love making things! learning golang and postgres right now.
Florian Roth @cyb3rops.bsky.social Placeholder profile : https://x.com/cyb3rops | glad to be in this respectful safe space | vi/vim
Raspberry Pi @raspberrypi.com We make very small computers which you can buy from just $4. We are also the literal coolest.
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
lazzslayer @lazzslayer.bsky.social Red Team | Co-Lead for @redteamvillage_ | OSCP
The Dustin Childs @dustinchilds.bsky.social Just a simple information security gnome trying to make his way through the universe. Part-time patch wrangler. Tweets are just my opinion and such. Got questions about patches or bug bounties? My DMs are open. Signal: DustinChilds.17
Corben Leo @hacking.bsky.social I hack stuff (legally). | co-founder boring.co
Twitter: https://twitter.com/hacker_
ransomNews @ransomnews.online Decoding #ransomware groups since before Bitcoin existed.
Deep threat intel for defenders who actually read the tech writeups.
🔗 ransomNews.online
💼 linkedin.com/company/ransomnews
MalwareHunterTeam @malwrhunterteam.bsky.social https://x.com/malwrhunterteam | https://id-ransomware.malwarehunterteam.com/
P4X @gustavopaiva.bsky.social flamengo
Jason Lang @jasonlang.bsky.social Dad, husband, designer. I make stuff. I cook stuff.
Dre ☭ @d4rkm4tter.bsky.social 
~billswearingen☎️# @hevnsnt.bsky.social Nationstate Cybersecurity: OG #SecKC #KansasCity haKCer, custom hardware dev, nano user, python advocate, & #23isreal. I forked ur Github to steal ur codez #. Current IP Address: 0.0.0.0
rand0h @akacki.net https://wsiiax.myshopify.com / Goon / Degenerate / KD3CHT / Akacki.net / DEFCON610.org
WiGLE.net @wiglenet.bsky.social All the networks, found by everyone.
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Sherrod @sherrod.bsky.social It’s me. Sherrod DeGrippo 
rohit @rnair.bsky.social agi whisperer 
Cody Kretsinger @codykretsinger.bsky.social Security Researcher, Recovering Red Teamer, Speaker & Author. Former LULZSEC Member. Cofounder BSides Peoria & IL Cyber Foundation. Views expressed are my own. https://codykretsinger.com
Tib3rius @tib3rius.bsky.social Web App (mostly) Hacker | Cybersecurity Educator | Content Creator | Ex-Brit | Links: http://linktr.ee/tib3rius (he/him) 🇺🇸 A mostly unserious person. @therealc3rul34n.bsky.social is bae 🥰
@domchell.bsky.social @domchell.bsky.social 
Wall of Sheep @wallofsheep.bsky.social Official Feed from the Wall of Sheep
💩 @vxdb.bsky.social i'm here
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
Kernelcon @kernelcon.bsky.social OMAHA’S HACKER CON
https://infosec.exchange/@kernelcon
🌲Training: 4.7-8
🏕️Con: 4.9-10
🏨 Venue: Hilton downtown Omaha
🪵 CFP is CLOSED!
📝 http://reg.kernelcon.org
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
Mark Burnett @m8urnett.bsky.social Long time Infosec/Appsec SME/writer/consultant. MS MVP alumnus; https://www.deviantart.com/m8urn
Mastodon: @m8urnett@infosec.exchange
Tim @tvidas.bsky.social Husband, Dad, Hacker.
Principal Security Engineer at @AWSCloud
Serial founder (e.g. @defcon402, @_kernelcon_)
Personal account.
@tvidas@infosec.exchange
@tvidas@twitter
Victor Gevers @0xdude.bsky.social (Grumpy Old) Hacker. Co-founder of the GDI Foundation. Co-founder Dutch Institute for Vulnerability Disclosure. Co-founder CSIRT.global
and unfiltered on https://victorgevers.com. "I was there when software cracking was in its prime."
x0rz @x0rz.bsky.social Cybersecurity & Threat Intelligence. Knowledge is power, France is bacon 🥓
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
hackerfantastic.crypto @hackerfantastic.bsky.social Co-Founder https://hacker.house cyber security assurance & hacker training ~ ISBN9781119561453 ~ a book on professional hacking. Contact for competitive quotes on cyber security projects. 
Mandiant (part of Google Cloud) @mandiant.com We’re determined to make organizations secure against cyber threats and confident in their readiness.
crowdstrike.com @crowdstrike.com official CrowdStrike account (check domain👆)
The first cloud-native platform that protects endpoints and cloud workloads, identity & data. #WeStopBreaches. Free trial: http://crwdstr.ke/tryfalcon
Dark Reading @darkreading.bsky.social One of the most widely read and trusted cybersecurity news sites, providing IT security professionals informed insights into the latest news and trends.
SpecterOps @specterops.io Creators of BloodHound | Experts in Adversary Tradecraft | Leaders in Identity Attack Path Management
WebDesignMuseum @webdesignmuseum.org Web Design Museum exhibits thousands of screenshots and videos of websites, apps, software, and Flash games from the 1990s to the late 2000s.
Black Hat @blackhatevents.bsky.social The world's premier Technical Cybersecurity Conference Series
Accidental CISO @accidentalciso.net I accidentally became the CISO. I didn't want this job, but the job chose me. I'm scared, and I want to go home.
https://www.accidentalciso.net
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Hackread.com @hackread.bsky.social The official Bluesky account of the most reliable cybersecurity news platform brings exclusive dark web, tech, hacking news, and much more. Contact: admin@hackread.com.
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Shannon Morse @snubs.bsky.social 💕 YouTube Tech Content Creator 💕
🥳 130k+ https://youtube.com/@ShannonMorse
🌙 Sailor Moon Expert & Collector 🌙
https://youtube.com/@SailorSnubs
🦄 She/Her/Cylon/Unicorn/Witch 🦄
📸✈️🎮👩💻🌻🔮
@hak5.bsky.social @hak5.bsky.social 
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
Malwarebytes @malwarebytes.com All-in-one cybersecurity that's always by your side
https://www.malwarebytes.com/
Have I Been Pwned @haveibeenpwned.com Check if you have an email address or password that has been compromised in a data breach. Created and maintained by
@troyhunt.com.
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Karsten Hahn @struppigel.bsky.social 
0xdf @0xdf.bsky.social Principal Training Architect @ HackTheBox
CTF Addict
"Potentially a legit researcher"
he/him
Website: https://0xdf.gitlab.io/
YouTube: https://www.youtube.com/c/0xdf0xdf
Twitter: 0xdf_
Discord: 0xdf
Mastadon: 0xdf@infosec.exchange
mattnotmax @mattnotmax.bsky.social Wrangling coffee. Hunting CyberChef. Drinking malware. Confusing verbs. 
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.
The DFIR Report @thedfirreport.bsky.social Real Intrusions by Real Attackers, the Truth Behind the Intrusion.
https://thedfirreport.com
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!
Michael Skelton @codingo.com VP of Security Operations at Bugcrowd, Security Content @ http://youtube.com/codingo, tools @ http://github.com/codingo. SecTalks and BSides Gold Coast co-organizer - He/Him
Louis Nyffenegger @snyff.pentesterlab.com Founder/CEO/Trainer/Researcher/CVE archeologist
@PentesterLab. Security engineer. Bugs are my own, not of my employer...
OWASP® Foundation @owasp.org We improve the security of apps with community-led open source projects, 260 local chapters, and tens of thousands of members worldwide. Famous for OWASP Top 10
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Rod Trent @rodtrent.com Christian. Husband. Father. Runner. Speaker. Author. Capitalist. Cyber and AI at Microsoft. Dude/Bro.
@hasherezade.bsky.social @hasherezade.bsky.social Programmer, #malware analyst. Author of #PEbear, #PEsieve, #TinyTracer. Private account. All opinions expressed here are mine only (not of my employer etc) ; https://hasherezade.net
Will T @bushidotoken.net 🇬🇧 | Senior Threat Intelligence Advisor at Team Cymru | Co-author SANS FOR589 | Co-founder Curated Intel
Raj Samani @rajsamani.bsky.social Chief Scientist @Rapid7 (ex @McAfee) | @cloudsa | Co-author of @CyberGridBook & CSA Guide to Cloud | Advisor
@EC3Europol
https://bsky.app/profile/rajsamani.bsky.social
ThreatDown @threat-down.bsky.social No complexity, just security. We overpower threats and empower IT to cover every stage of an attack, and every size of business.
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Panda 🐼 @realcyberpanda.bsky.social 🕵️ Security Analyst; #BlueTeam 🫡 | Software Developer 💻 | Layer 8 Debugger 🤷 | 🎩 Master of Mischief | Professional Ramen destroyer 🍜
Sergiu Gatlan @serghei.bsky.social Cybersecurity/tech reporter @BleepingComputer / serghei.ro
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
Dr Nestori Syynimaa @drazuread.com Principal Identity Security Researcher @Microsoft. Ex-Secureworks (PhD, MSc, MEng, CITP, CCSK).
And yes, opinions are my own ;)
Nick Frichette @frichetten.com Staff Security Researcher @datadoghq | DEF CON/Black Hat USA main stage speaker | he/him | OSCP OSWE | I turned hacking AWS into a career | Tweets are my own | Created https://hackingthe.cloud
Fabian Bader @fabian.bader.cloud #Security #Azure #EntraID #XDR #MDE #Identity #M365 #AD #PKI #KQL
Microsoft MVP
Tweets and opinions are my own
Tim Medin @timmedin.bsky.social Kerberoast Guy • RedSiege CEO • Hater of Pants • Former SANS 560 Author, Senior Instructor • Packers owner • Work Req: http://redsiege.com/contact
gabsmashh @gabsmashh.bsky.social security engineer | 1L JD Candidate | NYU alum |
stacksmashing @stacksmashing.bsky.social Security researcher with a focus on hardware & firmware. I occasionally publish stuff on YouTube. Co-founder of
hextree.io. Contact: contact@stacksmashing.net
Pirate Software @piratesoftware.live Game Dev - Streamer 💛 Go Make Games - https://develop.games 💜 Ferret Rescue - https://ferrets.live 💛 Business: Pirate@sidequestmedia.com
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
@pinkflawd.bsky.social @pinkflawd.bsky.social 
૮ ･ ﻌ･ა Trash Puppy @trshpuppy.bsky.social Hacker | Former ER Nurse | Definitely not Tom | Rooting thru your trash
૮ ฅ• ﻌ -ฅ ა
LaurieWired @lauriewired.bsky.social researcher @google; serial complexity unpacker
ex @ msft & aerospace
Ryan M. Montgomery @0dayctf.bsky.social Pentester / Serial Entrepreneur / Child Safety Warrior — http://tryhackme.com/p/0day
comiCSS @comicss.art A webcomic about CSS. Coded in CSS.
Webcomic : comicss.art
Support : www.patreon.com/comicss
Author: @alvaromontoro.com
Chris Traynor @cstraynor.bsky.social Pen Tester @bhinfosecurity.bsky.social | Owner @ridgebacksec.bsky.social | Instructor @Antisy_Training