Scott Piper @scottpiper.bsky.social Cloud security historian.
Developed http://flaws.cloud, CloudMapper, and Parliament.
Founding team for fwdcloudsec.org
Principal Cloud Security Researcher at Wiz.
Best of r/cybersecurity @cybersecurity.page Summarizes the hottest content on r/cybersecurity once per hour. Warning, the summaries are generated by an LLM and are not guaranteed to be 100% correct. Operated by @tweedge.net, open source @ https://github.com/r-cybersecurity/best-of-bot
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
Troy Hunt @troyhunt.com Creator of Have I Been Pwned. Microsoft Regional Director. Pluralsight author. Online security, technology and “The Cloud”. Australian.
Jamie Collier @collierjam.bsky.social Cyber threat connoisseur at Google. Senior Research Associate at Virtual Routes / Associate Fellow at RUSI. 
Alvaro Muñoz @pwntester.bsky.social Security Researcher with @GHSecurityLab. CTF #int3pids. Opinions here are mine!
rootsecdev @rootsecdev.bsky.social Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
Kristina Balaam @kristinabalaam.bsky.social 💻 Senior Staff Researcher @Lookout. 中文学习. China-Focused Threat Intelligence. Malware, Geopolitics, Human Rights. Opinions my own.
UK_Daniel_Card @mrr3b00t.bsky.social 
Adan Álvarez #standwithukraine @flekyy90.bsky.social adan.cloud
Cyber Security Engineer interested in Pentesting | Cloud Security | Adversary Emulation | Threat Hunting | Purple Teaming | Bug Bounties | SecDevOps
Ian Coldwater 🧊🚫 @lookitup.baby Kubernetes SIG Security Co-Chair, container escape artist, goose in the mainframe. Minneapolis. They/them. Stay punk 🏴
MSP feed info: https://bsky.app/profile/amityf.bsky.social/post/3l3frqadlo32h
DistrictCon @districtcon.bsky.social A new DC hacker conference: Bringing together builders, breakers, and fixers to do cool shit.
Feb. 6-7, 2027
districtcon.org
Natto Thoughts @nattothoughts.bsky.social Cyber threat intelligence research and analysis from geopolitical, economic, social, cultural and linguistic perspectives.
https://www.nattothoughts.com/
thesilence @thesilence.bsky.social Principal analyst @vtxproject / #Synapse
#APT1 report / former Mandiant
Doing #threatintel before it was a thing
Mark Russinovich @markrussinovich.bsky.social CTO of Microsoft Azure, author of novels Rogue Code, Zero Day and Trojan Horse, Windows Internals, Sysinternals tools. Opinions are my own.
Jessica Lyons @jessicalyons.bsky.social Cybersecurity editor @theregister.com Contact me with tips: jessica.lyons@theregister.com or jess.825 on Signal
Mama bear, book worm, outdoor lover, coffee and wine snob. PNW after decades in Santa Cruz but Blazers fan always.
Dakota @dakotaindc.bsky.social China-Focused Consultant @SentinelOne | Nonresident Fellow @ACGlobalChina | Adjunct @Georgetown | Unprofessional Cook | ❤️💜💙
https://linktr.ee/dakotaindc
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.
Andrew Thompson @imposecost.bsky.social Head of Research and Discovery @Google Threat Intelligence. Leading multidisciplinary teams to defeat adversaries. Posts are attributable to me—not my employer.
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.
Ray [REDACTED] @rayredacted.com Past: Host of "Tribe of Hackers"; Assoc. Producer "Darknet Diaries."
Current: Cybersecurity researcher and executive. Also, father of the fastest climber who has ever lived. Seriously.
Warning: I talk about my son ALOT
“Ut scandis, alios subleva.”
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Joe Tidy BBC News @joetidy.bsky.social Cyber Correspondent, BBC News. Author of Ctrl+Alt+Chaos. I cover cyber security, online safety, crypto, AI, social networks and everything 💻📱📡. Global news mainly. DMs always open for tips/ feedback.
Mario Trujillo @mariotrujillo.bsky.social senior staff attorney at the Electronic Frontier Foundation
Anton Babenko 🇺🇦 @antonbabenko.com compliance.tf / weekly.tf / serverless.tf / AWS Hero / Terraform influencer 🇺🇦🇳🇴
Anthony Weems @amlw.dev Cloud Vulnerability Research @ Google
L4r1k @l4r1k.bsky.social Cloud research/DFIR @CrowdStrike. Threat hunting/devsecops/forensics. Drinker of diet coke
Rowan @rowanu.bsky.social AWS IAM, cloud security, and serverless
Karl Fosaaen @kfosaaen.bsky.social VP of Research - @netspi
Co-author of “Penetration Testing Azure for Ethical Hackers” (http://amzn.to/3GOvW3A).
@kfosaaen on most other platforms
Karim El-Melhaoui @karimscloud.bsky.social Principal Security Architect & Partner at http://o3c.no, CloudSec Researcher, Microsoft Security MVP, CSA Norway Board Member
Alon Schindel @alonsch.bsky.social Research & AI @ Wiz
Mick Grove @micksmix.bsky.social Interested in computer security. 🐕 friendly. Security at MongoDB. Formerly at Apple, AWS, other places.
Torvos @torvos.bsky.social Cloud Cyber Security Person, I break things but I also help fix them.
Thoughts/Views are my own
Corry Haines @sharpletters.net Cat wrangler and occasional security engineer, formerly various places, more on my blog.
Olav Østbye @handle.invalid ☁️ Operationalizing and democratizing Cloud Security
🎙️Podcaster, dad, and partner at O3 Cyber.
🌐 O3C.io
Rohit Agarwal @rohitagarwal.bsky.social Cloud Security @ Airbnb
Izar Tarandach @threatmodeling.dev Threat model and prosper! 🖖
OWASP pytm Leader | OWASP Events Committee Chair (2024)
Tim Orr @easttim0r.bsky.social cloud security. at block, previously at accenture & netflix. 
Cory Scott @coryscott.bsky.social Security guy. Previously at Confluent, Google, LinkedIn, Matasano, and @stake.
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
💥 leonjza @leonjza.bsky.social [ 'cto @sensepost.com', '@orangecyberdef', 'caffeine fueled', '(╯°□°)╯︵ ┻━┻', 'security guy', 'metalhead', 'i saw your password', 'KOOBo+KXleKAv+KXlSnjgaM=' ]
Sebastian Walla @sebastianwalla.bsky.social Cloud Threat Intelligence
xstevens @xstevens.dev Security Researcher
https://infosec.exchange/@xstevens
FKA twitter/@xstevens
Mukund @mukundsarma.bsky.social Security and stuff at Chime!
Hacking the Cloud @hackingthe.cloud An open source encyclopedia of offensive security techniques that can be used in cloud environments. Created and maintained by @frichetten.com
Graham Helton (too much for zblock) @grahamhelton.bsky.social Hi
Fred Baguelin @udgover.bsky.social Security Researcher @Datadog.
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
Kennedy Toomey @kennedytoomey.bsky.social Application Security | Security Research and Advocacy @ Datadog 
Eslam Salem @netcodex.bsky.social Manager, security research @ Datadog | he/him | Chess lover | Blackhat speaker |
ex Sqreen.io, Shieldfy.io | my website: https://eslam.io
shenetworks @shenet.works Networking • Hacking • Hacking Networks (she/her)
shenet.works
Steam @steampowered.com Steam, The Ultimate Online Game Platform.
For support: http://help.steampowered.com/en/
David Buchanan @retr0.id reverse engineering, cryptography, exploits, hardware, file formats, and generally giving computers a hard time
Fedi: @retr0id@retr0.id
Macroblog: https://www.da.vidbuchanan.co.uk/blog/
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
Black Hills Information Security @bhinfosecurity.bsky.social Specializing in pen testing, red teaming, and Active SOC. We share our knowledge through blogs, webcasts, open-source tools, and Backdoors & Breaches game.
blackhillsinfosec.com & poweredbybhis.com
Andreas Wittig @andreaswittig.bsky.social 👷♂️ Building micro-SaaS on AWS
🛡️ bucketAV - Virus Scan for S3
🛠️ HyperEnv - self-hosted GitHub runners
🦠 attachmentAV - Virus Scan for Atlassian + Salesforce
🚨 marbot - Alerts and Notifications for Teams
🌍 Sharing my learnings at cloudonaut.io
Duckbill @duckbillhq.bsky.social Enterprise cloud cost management that actually makes sense. We help you understand what you're spending, negotiate smarter contracts, and optimize ruthlessly.
ThinkstCanary @thinkstcanary.canary.tools Know. When it matters.
https://canary.tools
Datadog Security Labs @securitylabs.datadoghq.com Read our Security Labs blog: https://securitylabs.datadoghq.com
Subscribe to our monthly newsletter: https://securitylabs.datadoghq.com/newsletters/
Red Siege @redsiege.com Penetration Testing, Purple Team, Red Team & Adversary Emulation.
Let our Offense, Prepare your Defense. https://redsiege.com
#weareoffensive
Electronic Frontier Foundation @eff.org We're the Electronic Frontier Foundation. We're a nonprofit that fights for your privacy and free speech online. Find all of EFF's social media accounts at eff.org/social.
TrustedSec @trustedsec.com End-to-end Cybersecurity consulting team leading the industry, supporting organizations, and giving back. #HackThePlanet
https://trustedsec.com/
Security Onion @securityonion.bsky.social By defenders. For defenders.
Peel back the layers of your network and make your adversaries cry.
https://www.securityonion.com
Cloudflare @cloudflare.social Cloudflare is the world’s leading connectivity cloud, and we have our eyes set on an ambitious goal — to help build a better Internet.
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
Datadog HQ @datadoghq.com Datadog is the monitoring and security platform for cloud applications.
Ian Kretz @ikretz.bsky.social Security Research @ Datadog
IAMTrail (Previously MAMIP) @iamtrail.bsky.social AWS silently updates Managed IAM policies all the time.
We catch every single change (Policies, Endpoints, GuardDuty)
Learn more at IAMTrail.com
Visual Studio Code @vscode.dev The open source AI code editor
fwd:cloudsec @fwdcloudsec.org Non-profit, community-based cloud security conference.
Mike @theomegabit.xyz AWS Pro | Cloud | Security @trek10.com | Tech enthusiast Musically trapped between a metallic headbang and a bass wobble | Photographer (bsky): @betapixels.photography
Karen Haberkorn @khaberkorn.bsky.social Identity product manager at AWS, Seattle resident, parent of teenagers
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
Justin Gardner @rhynorater.bsky.social Christian | Full-time Bug Bounty Hunter | Host @ctbbpodcast.bsky.social | Advisor @caido.io | 3x LHE MVH | 🗣️ English, 日本語
Jeff Moss @thedarktangent.defcon.social.ap.brid.gy Founder of DEF CON & Black Hat. Maintainer of infocon.org.
Member of the UK Gov Cybersecurity Advisory Board & The Council on Foreign Relations.
Working to […]
🌉 bridged from ⁂ https://defcon.social/@thedarktangent, follow @ap.brid.gy to interact
Low Orbit Security @loworbitsec.bsky.social Tailored Security Solutions
Ryan Kazanciyan @ryankaz42.bsky.social CIO & CISO @ Wiz
Stephen Shaffer @t0sche.bsky.social dad | stoic | space | infosec dude | 🌹
writing at stephenshaffer.io when I have things to share
Jason Geffner @geffner.bsky.social Principal Security Engineer at Microsoft. Formerly at Google and Amazon.
Peter Stöckli @ulldma.bsky.social Security Researcher and Software Engineer at GitHub Security Lab
Yoav Alon @yoavalon.bsky.social 
Aaron @acjewitt.bsky.social Blue Team, Red Team, Detection Engineering, I've been doing it a while
Rami @ramimac.me security, for the internet, at Wiz
opinionated about security.
knowledge hubs at rami.wiki, thoughts at ramimac.me
Wiz io @wizsecurity.bsky.social Secure everything you build and run in the cloud
Amitai Cohen🎗️🤟 @amitaico.bsky.social personal website @ cloudcurio.us ✦ researching @ Wiz Security (threats.wiz.io) 🐞 maintaining @ cloudvulndb.org 🎙️ podcasting @ cryingoutcloud.io 🗺️ pivoting @ Pivot Atlas (gopivot.ing)
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
Steven Lim @stevenlim.bsky.social #MicrosoftMVP #Cybersecurity #Sentinel #DefenderXDR #KQL #KQLWizard
https://spotlight.favikon.com/steven-lim/
Mark Morowczynski @markmorow.com Principal Security Researcher @Microsoft. Author, Blogger, Speaker, and Baseball Nerd. Always has an overwhelming backlog of books and video games to get through.
The Citizen Lab @citizenlab.ca We are an academic research unit at the University of Toronto investigating novel threats to democracy, human rights, and global security in the digital ecosystem.
Ger in the Cloud @cloudsec9.bsky.social Cloud and Container Security. Previously SysAdmin and Programmer in Linux, Python, C & Bash. Love to learn and pass along knowledge.
David Fowler @davidfowl.com Distinguished Engineer @ Microsoft 🧐. Creator of NuGet, SignalR and ASP.NET Core, Barbadian 🇧🇧, Tennis Player.
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Graylog @graylog.bsky.social 🌍 Trusted Threat Detection & Incident Response solutions. Experience the difference with our unmatched capabilities. #SIEM #APISecurity #LogManagement #InfoSec
WIRED @wired.com For Future Reference.
Sign up for our newsletters: https://wrd.cm/newsletters
Find our WIRED journalists here: https://go.bsky.app/Boj9b5E
The New York Times @nytimes.com In-depth, independent reporting to better understand the world, now on Bluesky. News tips? Share them here: http://nyti.ms/2FVHq9v
Vicky Harp @vickyharp.com Product person, recently ex-Microsoft. Dev experiences, Al, data. Helper of experts. She/Her. Black Lives Matter.
This meeting could have been a riot.
Barry Dorrans @blowdart.me Security Curmudgeon for Microsoft .NET
Do you really think work wants my social media opinions?
Not nice, but kind - @medus4.com
🇮🇪 🇬🇧 🇺🇸 
Corey Quinn @quinnypig.com Snarkmonger. Chief Cloud Economist at The Duckbill Group.
he/him.
Get my opinionated take on AWS news: http://lastweekinaws.com/t/
Signal: 833-AWS-BILL (833-297-2455)