North Wales Police @northwalespolice.bsky.social 
Angry @angrystaffer.bsky.social Not a WH Staffer | Politics, NatSec, and Snark - Your Mileage May Vary | Subscribe to my Patreon newsletter for free: https://www.patreon.com/AWHSBlog |
BSides Pyongyang @bsidespyongyang.bsky.social 🇰🇵 #BSidesPyongyang2025 : Nov 18 2025 (Missile Industry Day) @ Lazarus HQ Pyongyang
https://bsidespyongyang.com/
Zak AKA “The Pylon Guru” - Energy Transmission & Distribution ⚡️ @zakm180.bsky.social Self-taught electrical infrastructure enthusiast. Well known in the Energy Industry by qualified Engineers. Administrator of the Pylon Appreciation Society.
Home Assistant @home-assistant.io Open source home automation that puts local control & privacy first. Powered by a worldwide community of tinkerers & DIY enthusiasts.
Marc-André Moreau @awakecoding.com Remote desktop protocol expert, OSS contributor and Microsoft MVP. I love designing products with Rust, C# and PowerShell. Proud to be CTO at Devolutions. 🇨🇦
Technology Connections @techconnectify.bsky.social I'm that YouTuber who taught you how dishwashers work. Guess I'm tryin' out the whole Bluesky thing now.
he/him
https://www.youtube.com/technologyconnections
Cold War Steve @coldwarsteve.bsky.social Artist
Coldwarsteve.com
Adam Savage @asavage.bsky.social Maker. Science Communicator. Connector. 
@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
David (DWIZZZLE) Weston @dwizzzle.bsky.social Corporate Vice President, OS Security and Enterprise @Microsoft
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
Troy Hunt @troyhunt.com Founder & CEO of @haveibeenpwned.com, the most trusted name in data breach intelligence. Speaker, blogger, Microsoft Regional Director. Gold Coast, Australia.
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
HackerOne @hacker0x01.bsky.social The Only official HackerOne bsky account.
Peace of mind from security's greatest minds.
#HackForGood
Cyberknow @cyberknow.bsky.social Situational Awareness | Threat Research | Memes |#cybertracker | 'cyberwarfare' Correspondent | Meme Farmer 🇦🇺🇦🇺
Posts and Opinions are my own
Reg @reg.bsky.social I believe that Black Lives Matter, and that trans rights are human rights.
I’m an infosec geek in the streets, and an Oxford comma freak in the sheets.
she/her
b33f @fuzzysec.bsky.social 意志 / Antiquarian @ IBM Adversary Services / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching
at labs.calypso.pub
Katelyn 🅅 Medusfour @medus4.com Activist, Hacker cosplayer, Artist. Data economy abolitionist.
@cdc_pulpit Sinfluencer, Head of Humanity @ Veilid, designer of weird shirts at hack.xxx
I love gross terrifying things. Because I am one
OSINT Techniques @osinttechniques.bsky.social https://www.forensicosint.com/
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
TechCrunch @techcrunch.com Technology news and analysis with a focus on founders and startup teams.
Got a tip? http://techcrunch.com/tips
B1gt1dd13s @bentleyaudrey.bsky.social Tech & Humor 🪬
Will Dormann is on Mastodon @wdormann.bsky.social I play with vulnerabilities and exploits.
While this site initially showed promise, I've grown tired with its lack of improvement.
You'll find me @wdormann@infosec.exchange on Mastodon.
Alethe @alethe.bsky.social ‘Uh-Lee-th’ | Bishop Fox 🦊 Red Team | DEF CON Goon & Black Badge Hall of Fame | DEF CON Social Engineering CTF Winner 2019 | Physical Pentester | IVR Pentester | IR Tabletop King 👑
Safa 🇿🇦 in NorCal 🇺🇸 - Fish 🐠 Nerd - Jeep Girl
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Adam Pennington @whatshisface.bsky.social I lead MITRE ATT&CK. Something something SCUBA diving, cyber. If it’s not about ATT&CK, I speak only for me. He/him.
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
Canonical @canonicalltd.bsky.social Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.
#Canonical #Ubuntu #Linux
Debian @debian.bsky.social The Universal Operating System; items posted automatically from https://micronews.debian.org and https://bits.debian.org.
https://www.debian.org
Raspberry Pi @raspberrypi.com We make very small computers which you can buy from just $4. We are also the literal coolest.
nixCraft @cyberciti.biz Enjoy Linux & Unix-like systems, open-source software, and programming/compsci? Into Sysadmin & DevOps? Follow us to make the most of your IT career! Discover new tools and apps daily, plus a dose of humor ⤵️
https://www.cyberciti.biz
adafruit @adafruit.com Engineer - Founder of Adafruit - Brooklyn, NY USA - Manufacturer, open-source hardware, certified Minority and Woman-owned Business Enterprise (M/WBE) https://adafruit.com - support https://forums.adafruit.com & order/customer help support@adafruit.com
The Verge @theverge.com Covering life in the future
Subscribe here: https://www.theverge.com/subscribe
Internet Archive @archive.org Internet Archive is a non-profit research library preserving web pages, books, movies & audio for public access. Explore web history via the Wayback Machine. 
Proton @proton.me Choose a better internet where privacy is the default. Start protecting your personal information online with Proton Mail, Proton VPN, Proton Drive, Proton Pass, Proton Wallet, and Lumo: https://proton.me/
obscure - cDc 🅅 @obscure.bsky.social I am angry, I am ill, and I am as ugly as sin. My irritability keeps me alive and kicking. I know the meaning of life, it doesn’t help me a bit.
cDc Cultee
Alec Muffett @alecmuffett.bsky.social everybody deserves good security.
https://alecmuffett.com/about
Zoe Kleinman @zsk.bsky.social BBC Technology Editor 🤖
Paul Chichester CMG MBE @0xchich.bsky.social Director Operations, NCSC, GCHQ. 30+ years in Government Cyber Operations. Views entirely my own and do not necessarily reflect those of my organisation. 🏴 🇺🇦
Sam Swift 🏎️🎧🦊 @safesecs.bsky.social Cybers. DJish. Conwife. Nephophile. F1 Diva. Opinion Owner. Karaoke Disaster. ChiefDataSnarkist. She/Her/Bird.
BSidesNCL, BSides Leeds and BSides Lancs witch. DC SOC Goon 🌈🏳️⚧️Ally.
Elizabeth Wharton @lawyerliz.bsky.social Adviser, lawyer, and sometimes cybersecurity circus ringmaster - my monkeys fly.
Jake Moore @jakemooreuk.bsky.social Global Cybersecurity Advisor at ESET
www.jakemoore.uk
Eliot Higgins @eliothiggins.bsky.social Founder and creative director of Bellingcat and director of Bellingcat Productions BV. Author of We Are Bellingcat.
National Security Archive @nsarchive.bsky.social An independent research institution that advocates for open government and uses FOIA to collect and publish declassified documents - https://nsarchive.gwu.edu - instagram.com/natsecarchive - tiktok.com/@natsecarchive
John Opdenakker @j-opdenakker.bsky.social Blogger | #Infosec | #AppSec | Security awareness | Occasional Public Speaker | Cycling | Running | Posts might contain bad humor, sarcasm or irony | Takes your security seriously!
https://johnopdenakker.com
SANS Institute @sansinstitute.bsky.social SANS is the most trusted and by far the largest source for information & cyber security training, certification and research in the world. https://www.sans.org/
Mark Lechtik @marklech.bsky.social Senior TI Analyst @ MSTIC.
Former Senior RE @ FLARE.
BSides Birmingham @bsidesbirmingham.bsky.social 
TheArtOfInfoSec @theartofinfosec.bsky.social Must learn how to fight courageously in battle and compete with the enemy's strength and strategies. #SecurityAnalyst #BlueTeam #PurpleTeam
vx-underground (automated mirror) @vxundergroundre.bsky.social The largest collection of malware source code, samples, and papers on the internet.
Password: infected
(unofficial, this is a bot! Maintained by a private individual, the bot can't handle retweets or replies, support soonish)
Laughing Mantis @laughingmantis.bsky.social VXer, Computer Goth, Malware Musician
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
Intel 471 @intel471.bsky.social Intel 471 specializes in delivering intelligence related to threat actors, threat hunting, financial cybercrime, ransomware, vulnerabilities, malware and underground marketplaces. Listen to our podcast, Cybercrime Exposed, on Spotify and Apple. #infosec
Fabian Bader @fabian.bader.cloud #Security #Azure #EntraID #XDR #MDE #Identity #M365 #AD #PKI #KQL
Microsoft MVP
Tweets and opinions are my own
Matt Johansen @mattjay.com Friendly neighborhood cybersecurity guy | expect infosec news, appsec, cloud, dfir. | Long Island elder emo in ATX.
vulnu.com <- sign up for my weekly cybersecurity newsletter
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
Gi7w0rm @gi7w0rm.bsky.social Just me, worming through the interwebs.
Threat Intelligence and #URINT Analyst
Other places: linktr.ee/gi7w0rm
Support me: https://ko-fi.com/gi7w0rm
tactical_legacy_kirbo @da667cant.hax.lol Senior Security Researcher, Proofpoint Emerging Threats. I stare at pcaps all day, and use my pattern-seeking scattered hunter-gatherer brain, to write IDS signatures. I'm also a huge fuckin nerd. Obligatory My words are not fit for consumption warning.
TracketPacer @tracketpacer.com 🚀rockit network engineer
👩🏼💻ethernet fangirl
🛜 weird use cases & silly tech!
💌 tracket@tracketpacer.com
🌎 tracketpacer.com
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
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
SentinelOne @sentinelone.com The world’s most advanced, autonomous AI-powered cybersecurity platform. We empower the world to run securely, with leading organizations trusting us to Secure Tomorrow™. Secure your enterprise: http://sentinelone.com/request-demo/
I Am The Cavalry @iamthecavalry.org 
FalconForce @falconforce.nl Building a resilient digital society through highly specialised digital security consulting.
The DFIR Report @thedfirreport.bsky.social Real Intrusions by Real Attackers, the Truth Behind the Intrusion.
https://thedfirreport.com
SpecterOps @specterops.io Creators of BloodHound | Experts in Adversary Tradecraft | Leaders in Identity Attack Path Management
Greg Bailey @cybergreg.bsky.social SANS instructor, red team & old school pentester, neo-hippie…all around nice guy.
Kevin Johnson @secureideas.bsky.social I am a nerd that started a company almost 15 years ago. Secure Ideas is a security consulting firm focused on helping clients have the best penetration testing experience. I am also an IANS faculty member and currently an OWASP global board member. 
Daniel Pendolino @dpendolino.bsky.social Security Engineer at Ibotta. Single Dad. Nerd.
Terrence Williams @anerdfromduval.com I'm Just A Nerd From Duval
Computer Science and Cloud Security
SANS Instructor
Joe Sullivan @replicanthacker.bsky.social Security consultant
@TrustedSec, Techno-Horror fiction writer fearwarefiction.com
Carlos Fragoso @cfragoso.bsky.social Principal SME @ Maltego - SANS Instructor - Passionate about Investigations - #DFIR #OSINT- J Jon Zeolla @jonzeolla.com Cloud Native Security & Compliance | Founder, CNCF Ambassador, SANS Instructor, IANS Faculty
More active on LinkedIn (/in/jonzeolla)
Chris Dale @chrisdale.bsky.social Principal instructor at SANS Institute. CHO (Chief Hacking Officer) and co-founder of River Security. Occasionally put content on YT: https://www.youtube.com/@chrisdale
Brandon Evans @brandonevans.bsky.social Multicloud Security Consultant | Former Zoom Lead | SANS Author (SEC510) + Certified Instructor | Cloud Ace Podcast S1 Host | IANS Faculty | GPCS, GCSA, GSEC, GPEN, GWAPT, GSTRT, GSSP-JAVA | AWS Security Certified
David J. Bianco @davidjbianco.bsky.social Threat Hunting, CTI, incident detection & response. SANS instructor. Special interest in helping newbies get started. Also happy to talk about other geeky topics. He/Him. 
James LV @jamesleytevidal.bsky.social SANS Principal Instructor. IT Security practitioner. GSE 209. Gamer and runner in my abundant spare time. Likely being sarcastic. Florida Man as a Service. He/Him
Medium.com/@james.leyte.vidal
Julia Evans @b0rk.jvns.ca programming and exclamation marks
blog: jvns.ca
zines: wizardzines.com
Antisyphon Training - Powered by BHIS @antisyphontraining.bsky.social Affordable and accessible cybersecurity training that doesn't suck.
Featuring cybersecurity practitioners, former SANS instructors, and industry recognized leaders from all over the world.
https://www.antisyphontraining.com
GreyNoise @greynoise.io GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
Volexity @volexity.com Volexity is a cybersecurity firm founded by the pioneers of memory forensics. Volexity delivers transformative solutions & services to governments & organizations worldwide, increasing enterprise visibility & facilitating rapid intrusion detection.
Volatility @volatilityfoundation.org Official account of the Volatility Memory Analysis Project and Windows Malware and Memory Forensics Training. http://volatilityfoundation.org
Hackers on the Hill @hackersonthehill.org A semi-regular gathering for irregulars from the security research community to engage with Congressional staffers. Run by I Am The Cavalry, bridging the gap between the hacker and public policy communities since 2017.
TrustedSec @trustedsec.com End-to-end Cybersecurity consulting team leading the industry, supporting organizations, and giving back. #HackThePlanet
https://trustedsec.com/
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
Carlos Perez @thedarkoperator.bsky.social - Cybersecurity since 1998
- Information Security jack of all trades
- Hacker
https://www.darkoperator.com
Jun34u @jun34u.bsky.social Alaskan in Los Angeles. Chaotic idealist.
Hacker, Writer, and Game Theorist
cDc Cultist
Forever Script Kiddie
She/They 🏳️🌈🏴☠️
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Chris Krebs @thekrebscycle.bsky.social Aka @c_c_krebs over there 
Patrick Gray @patrick.risky.biz https://risky.biz/
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
Robin @digi.ninja Hacker, coder, climber, runner, triathlete.
Always learning.
Co-flounder of SteelCon
Chris Truncer @christruncer.bsky.social Deputy Chief Red Team @ CISA && BJJ && Open Source Dev
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)
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
Sarah Young @sarahyo.com Ex - Security & AI stuff @ Microsoft | Co-host of @azsecpod.bsky.social | Dogs, food and cyber security posts | Opinions mine, not my employer's | 🇬🇧 living in 🇦🇺 | Sarahyoung.io
Secure all the things @allthingssec.bsky.social Interests:
🐶 Doggos
👩🏾💻 Cybersecurity & sysadmin stuff
🍕 Delicious food
🌱 Health and sleep
🛩️ Traveling
🪴 Houseplants
🏋 Fitness
💰 Finance
Sherrod @sherrod.bsky.social It’s me. Sherrod DeGrippo 
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.