BStools

Dick Clarke

@racinrapp.bsky.social

Registered:20 Nov 2024 21:18

Follow date:19 Dec 2024 18:51

CEO of Good Harbor Security Risk Management. Former counterterrorism czar under Presidents Clinton and Bush. First national “cyber czar” Author of "Warnings" and co-author of "The Fifth Domain" and "Cyber War."

Katelyn 🅅 Medusfour

@medus4.com

12,665 followers, 3,088 follows, 4,158 posts

Registered:24 Apr 2023 14:45

Follow date:24 Nov 2024 22:02

Last post:4 Mar 2026

Last like received:7 hours ago

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

Thomas Rid

@ridt.bsky.social

19,542 followers, 1,231 follows, 0 posts

Registered:1 May 2023 13:50

Follow date:24 Nov 2024 22:02

@ridt on X

Joe Uchill

@joeuchill.bsky.social

8,526 followers, 3,839 follows, 13,108 posts

Registered:21 Jun 2023 03:32

Follow date:24 Nov 2024 22:02

Last post:7 hours ago

Last like given:5 days ago

Last like received:59 minutes ago

Potential game show contestant. Former Axios, The Hill, Passcode. Founder of the Codebook cybersecurity newsletter. Once got lost in a Starbucks.

Kevin Collier verified

@kevincollier.bsky.social

25,633 followers, 1,330 follows, 1,934 posts

Registered:16 May 2023 18:04

Follow date:24 Nov 2024 22:02

Last post:16 hours ago

Last like given:16 hours ago

Last like received:7 minutes ago

I cover digital threats for NBC News. Tip me! @kevincollier.01 on signal, kevin.collier@nbcuni.com. NYC, from West Virginia.

GreyNoise

@greynoise.io

4,087 followers, 24 follows, 405 posts

Registered:18 Jul 2023 15:03

Follow date:24 Nov 2024 22:02

Last post:4 days ago

GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.

Daniel Gordon

@validhorizon.bsky.social

3,284 followers, 205 follows, 715 posts

Registered:24 Jul 2023 12:18

Follow date:24 Nov 2024 22:02

Last post:1 Mar 2026

Last like given:10 hours ago

Thought Trailer, Cyber Threat Intel, DFIR. He/Him. Bucketing, sharing, and bacon-saving as a service. https://validhorizon.medium.co...

Sean Lyngaas verified

@snlyngaas.bsky.social

6,138 followers, 238 follows, 236 posts

Registered:10 Aug 2023 16:55

Follow date:24 Nov 2024 22:01

Last post:3 days ago

Last like given:4 days ago

Last like received:3 days ago

Cybersecurity reporter, CNN. Signal +1-202-355-8471 or SNLyng.11. sean[dot]lyngaas@cnn[dot]com|slyngaas@proton[dot]me

The Shadowserver Foundation

@shadowserver.bsky.social

4,928 followers, 0 follows, 790 posts

Registered:5 May 2023 15:41

Follow date:24 Nov 2024 22:01

Last post:6 Mar 2026

Last like received:4 days ago

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/partn...

Whitney Merrill

@wbm312.bsky.social

12,018 followers, 378 follows, 1,458 posts

Registered:26 Apr 2023 04:35

Follow date:24 Nov 2024 22:01

Last post:1 day ago

Last like given:3 hours ago

Last like received:5 hours ago

I nudge people to care about privacy and security. CPO/DPO. Privacy/infosec lawyer. Hacker. Fighting for privacy, digital civil liberties & the users. Ex @EA @FTC |my views are my own. I used to post on Twitter at @wbm312.

Alex Ionescu

@ionescu.bsky.social

6,673 followers, 186 follows, 20 posts

Registered:30 Apr 2023 02:51

Follow date:24 Nov 2024 22:01

Windows Internals Author, Developer, Reverse Engineer, Security Researcher, Speaker, Trainer, and most recently Nation State Hacker. Core OS Platform Developer at Apple, Hyper-V Vendor at Microsoft, Chief Architect at CrowdStrike and now Director at CSE.

Ian Coldwater 🧊🚫

@lookitup.baby

50,192 followers, 1,349 follows, 6,604 posts

Registered:12 Apr 2023 16:39

Follow date:24 Nov 2024 22:01

Last post:7 hours ago

Last like given:2 hours ago

Last like received:1 hour ago

Kubernetes SIG Security Co-Chair, but this account is mostly about Minneapolis right now. Chop wood, carry water 💛 MSP feed info: https://bsky.app/profile/amity...

Max Smeets

@maxwsmeets.bsky.social

6,232 followers, 491 follows, 183 posts

Registered:19 May 2023 22:35

Follow date:24 Nov 2024 22:01

Author of No Shortcuts & Ransom War Co-director Virtual Routes (https://virtual-routes.org/), previously ECCRI Managing Editor Binding Hook (https://bindinghook.com) Senior Researcher, ETH Zurich

MITRE ATT&CK verified

@attack.mitre.org

7,434 followers, 17 follows, 148 posts

Registered:19 Dec 2023 15:10

Follow date:24 Nov 2024 22:01

Last post:6 days ago

MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.

Greg Otto

@gregotto.bsky.social

5,473 followers, 455 follows, 763 posts

Registered:24 May 2023 14:00

Follow date:24 Nov 2024 22:01

Last post:2 days ago

Last like given:2 days ago

Last like received:17 hours ago

@gregotto from twitter, now on bluesky. Editor-in-Chief at CyberScoop. Host of Safe Mode. Better with words than I am with code.

Horkos

@wylienewmark.bsky.social

7,579 followers, 275 follows, 8,908 posts

Registered:14 Jun 2023 15:42

Follow date:24 Nov 2024 22:01

Last post:11 hours ago

Last like given:4 hours ago

Last like received:5 hours ago

waking up everyday in a full sprint. cyber(punk) & counterintelligence. bloody inertia interspersed with bouts of bloody frenzy. i see kanly today in everything. #FUZZYSNUGGLYDUCK opinions are my own.

Joe Slowik

@pylos.co

8,493 followers, 541 follows, 3,368 posts

Registered:27 Apr 2023 23:08

Follow date:24 Nov 2024 22:01

Last post:15 hours ago

Last like given:15 hours ago

Last like received:4 hours ago

Threat Intel / CTI / OT / ICS / Critical Infra stuff along with other things. I genuinely care, and wish others did too. Website: pylos.co Training/Consulting: paralus.co

Jason Kikta

@kikta.net

5,614 followers, 519 follows, 1,136 posts

Registered:12 May 2023 12:54

Follow date:24 Nov 2024 22:01

Last post:7 hours ago

Last like given:7 hours ago

Last like received:6 hours ago

// Somehow a CTO // JHU SAIS @alperovitch.institute adjunct // @istorg.bsky.social adjunct sr tech advisor // Retired US Marine Corps // Personal views and invective

Chris Bing

@chrisbing.bsky.social

11,286 followers, 1,482 follows, 157 posts

Registered:22 May 2023 02:19

Follow date:24 Nov 2024 22:01

Last post:2 Feb 2026

Last like given:2 days ago

Cyber, natsec and foreign affairs https://bing-chris.medium.com/...

Patrick Gray

@patrick.risky.biz

9,368 followers, 439 follows, 612 posts

Registered:30 Apr 2023 04:49

Follow date:24 Nov 2024 22:01

Last post:4 days ago

Last like given:3 days ago

Last like received:3 days ago

https://risky.biz/

J. A. Guerrero-Saade (JAGS)

@jags.bsky.social

6,778 followers, 312 follows, 416 posts

Registered:29 Apr 2023 18:49

Follow date:24 Nov 2024 22:01

Last post:28 Jan 2026

Executive Director for Intelligence and Security Research @ SentinelOne. Distinguished Fellow and Adj Professor @ Hopkins SAIS Alperovitch Institute. Three Buddy Problem Co-Host. LABScon Founder, Cyber Paleontologist, Fourth-Party Collector.

Ellen Nakashima

@ellenwapo.bsky.social

17,872 followers, 188 follows, 190 posts

Registered:7 Jul 2023 14:01

Follow date:24 Nov 2024 22:01

Last post:28 Nov 2025

Intelligence and national security reporter at The Washington Post. Reach me securely on Signal at Ellen.626.

Eric Geller verified

@ericjgeller.com

19,464 followers, 199 follows, 4,551 posts

Registered:29 Apr 2023 13:29

Follow date:24 Nov 2024 22:01

Last post:8 hours ago

Last like received:2 hours ago

Senior reporter at @CybersecurityDive.bsky.social covering all things digital security. I also co-host @hothtakes.bsky.social. | Send me tips: https://ericjgeller.com/contac...

John Hultquist

@hultquist.bsky.social

9,698 followers, 309 follows, 220 posts

Registered:4 May 2023 01:40

Follow date:24 Nov 2024 22:00

Last post:25 Feb 2026

Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.

Azeria

@azeria-labs.com

8,230 followers, 95 follows, 40 posts

Registered:23 Apr 2023 20:11

Follow date:24 Nov 2024 22:00

Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering

Dustin Volz verified

@dustinvolz.bsky.social

31,023 followers, 1,048 follows, 462 posts

Registered:4 May 2023 21:35

Follow date:24 Nov 2024 22:00

Last post:7 Mar 2026

Last like received:13 hours ago

National security reporter for The Wall Street Journal focused on cyber conflict, digital espionage and intelligence. Based in DC, with past bylines from SF, London and Berlin. It can happen here. https://www.wsj.com/news/autho...

Matthew Green

@matthewdgreen.bsky.social

18,407 followers, 406 follows, 1,986 posts

Registered:28 Apr 2023 16:15

Follow date:24 Nov 2024 22:00

Last post:1 day ago

Last like given:1 day ago

Last like received:6 hours ago

I teach cryptography at Johns Hopkins. https://blog.cryptographyengin...

Lorenzo Franceschi-Bicchierai verified

@lorenzofb.bsky.social

18,495 followers, 2,528 follows, 794 posts

Registered:26 Apr 2023 18:43

Follow date:24 Nov 2024 22:00

Last post:18 hours ago

Last like given:1 day ago

Last like received:3 hours ago

Real-time historian of the late cyber capitalist era @TechCrunch, writing about the intersection of hackers, human rights, and spies. Also writing a book about Hacking Team and the history of government spyware. ☎️ Signal: +1 917 257 1382

Dmitri Alperovitch

@dmitri.silverado.org

29,237 followers, 872 follows, 526 posts

Registered:30 Apr 2023 06:59

Follow date:24 Nov 2024 22:00

Last post:22 Dec 2025

Last like received:18 hours ago

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

David Buchanan verified

@retr0.id

54,308 followers, 604 follows, 29,605 posts

Registered:27 Apr 2023 09:23

Follow date:24 Nov 2024 22:00

Last post:4 hours ago

Last like given:2 hours ago

Last like received:35 seconds ago

reverse engineering, cryptography, exploits, hardware, file formats, and generally giving computers a hard time Fedi: @retr0id@retr0.id Macroblog: https://www.da.vidbuchanan.co....

Meredith Whittaker verified

@meredithmeredith.bsky.social

116,680 followers, 1,021 follows, 485 posts

Registered:1 May 2023 20:26

Follow date:24 Nov 2024 22:00

Last post:5 Mar 2026

Last like given:3 days ago

Last like received:12 minutes ago

President of Signal, Chief Advisor to AI Now Institute

Patrick Howell O’Neill verified

@patrickhowelloneill.com

7,978 followers, 1,044 follows, 55 posts

Registered:26 Apr 2023 01:49

Follow date:24 Nov 2024 22:00

Last post:12 hours ago

Last like given:15 hours ago

Last like received:6 hours ago

Cyber journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/auth...

Tom Nichols verified

@radiofreetom.bsky.social

368,618 followers, 465 follows, 26,986 posts

Registered:28 May 2023 01:27

Follow date:24 Nov 2024 21:53

Last post:13 hours ago

Last like given:6 hours ago

Last like received:10 seconds ago

Staff writer at The Atlantic. Cat guy, democracy defender. Actor for a day on Succession, Jeopardy champ. New Englander and curmudgeon.

Alyssa Miller 🦄👩‍✈️

@alyssam-infosec.com

12,644 followers, 1,400 follows, 2,141 posts

Registered:27 Apr 2023 14:24

Follow date:22 Nov 2024 00:09

Last post:6 hours ago

Last like given:5 hours ago

Last like received:2 hours ago

Hacker, CISO, and commercial pilot. Certified Bluesky Elder. Author and International Speaker, Chief advocate of #DoBetterBeBetter Compassion and empathy are traits in short supply but necessary to make this world a better place. alyssasec.com

Kevin Beaumont verified

@doublepulsar.com

14,706 followers, 187 follows, 1,001 posts

Registered:23 Apr 2023 20:23

Follow date:22 Nov 2024 00:09

Last post:4 days ago

Last like given:14 hours ago

Last like received:22 hours ago

cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.

Sean Gallagher

@thepacketrat.net

9,435 followers, 4,368 follows, 4,846 posts

Registered:2 May 2023 02:26

Follow date:22 Nov 2024 00:09

Last post:16 hours ago

Last like given:11 hours ago

Last like received:13 hours ago

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

Jake Williams

@malwarejake.bsky.social

14,469 followers, 470 follows, 7,932 posts

Registered:25 Apr 2023 21:38

Follow date:22 Nov 2024 00:09

Last post:18 hours ago

Last like given:22 hours ago

Last like received:35 minutes ago

Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.

2026 all the things

@pwnallthethings.bsky.social

196,277 followers, 5,181 follows, 1,502 posts

Registered:15 May 2023 14:40

Follow date:22 Nov 2024 00:09

Last post:1 day ago

Last like given:10 minutes ago

Last like received:5 hours ago

Just thinking out loud.

William Gibson

@greatdismal.bsky.social

92,446 followers, 201 follows, 431 posts

Registered:1 May 2023 01:20

Follow date:22 Nov 2024 00:09

Last post:9 hours ago

Last like given:5 hours ago

Last like received:9 minutes ago

Author of Neuromancer and, most recently, Agency (still above from “Kill Switch”, The X-Files, Season 5, Episode 11, co-written with Tom Maddox)

HD Moore

@hdm.io

2,046 followers, 1,430 follows, 96 posts

Registered:3 Aug 2023 02:21

Follow date:22 Nov 2024 00:09

Last post:7 Mar 2026

CEO and founder of runZero.com, previously the founder and lead developer of Metasploit, a CSO, a consultant, and the head of various security research teams. Contact info, presentations, and more at https://hdm.io/

Dan Goodin

@dangoodin.bsky.social

9,904 followers, 816 follows, 108 posts

Registered:2 May 2023 16:53

Follow date:22 Nov 2024 00:09

Last post:28 Feb 2026

Cybersecurity Reporter, Ars Technica: https://arstechnica.com/author... 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."

Mark Dowd

@mdowd.bsky.social

2,634 followers, 74 follows, 57 posts

Registered:30 Apr 2023 16:21

Follow date:22 Nov 2024 00:09

Last post:26 Nov 2025

Internet hacker

Alex Stamos verified

@stamos.org

16,964 followers, 962 follows, 121 posts

Registered:30 Apr 2023 02:03

Follow date:22 Nov 2024 00:09

Last post:3 Mar 2026

Last like received:4 days ago

CPO/CSO of Corridor.dev, teaching at Stanford.

Matt Blaze

@mattblaze.org

15,747 followers, 228 follows, 689 posts

Registered:6 May 2023 16:35

Follow date:22 Nov 2024 00:08

Last post:26 Feb 2026

Last like received:3 days ago

Scientist, safecracker, etc. McDevitt Professor of Computer Science and Law at Georgetown. So-called expert on election security and a few other things. Slow photographer. RF nerd. Occasionally blogs at https://mattblaze.org/blog

Jennifer Stisa Granick

@granick.bsky.social

9,100 followers, 171 follows, 559 posts

Registered:24 Sep 2023 21:57

Follow date:22 Nov 2024 00:08

Last post:5 days ago

Last like received:5 days ago

Personal account. ACLU lawyer. From New Jersey. Living in San Francisco. New College of Florida alum. Newfie owner.

Zack Whittaker verified

@zackwhittaker.com

15,723 followers, 296 follows, 804 posts

Registered:3 May 2023 22:01

Follow date:22 Nov 2024 00:08

Last post:4 days ago

Last like given:3 days ago

Last like received:3 days ago

Security editor, TechCrunch Signal: zackwhittaker.1337 My stories: techcrunch.com/author/zack-whittaker My newsletter/blog: this.weekinsecurity.com

Lesley Carhart verified

@hacks4pancakes.com

24,123 followers, 1,092 follows, 3,135 posts

Registered:12 Mar 2023 20:47

Follow date:22 Nov 2024 00:08

Last post:7 hours ago

Last like given:7 hours ago

Last like received:3 minutes ago

I am eminently qualified to speak from experience about a variety of dumpster fires. ICS DFIR at Dragos, martial artist, marksman, humanist, level 14 Neutral Good rogue, USAF retired. I post *very serious* things about infosec. Thoughts my own. Enby. 🏳️‍🌈

Katie Moussouris (she/her/she-hulk/she-ra)🌻 verified