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1471 awesome Security accounts on Mastodon that posted recently.

Recently posted security Security
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Graham Cluley
@[email protected]

Computer chap. Public speaker, blogger, fan since 1972. Author of Jacaranda Jim and Humbug games. Co-host of "The AI FIx" and @smashingsecurity . Needs haircut.


He/Him/His

Last posted 1 day ago
Posts 1,554
Followers ▼ 13,448
Following 634
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The Internet's Observatory: Tracking cybersecurity and digital governance • connectivity and democracy • tools and policy for change • [email protected]

Last posted 1 day ago
Posts 797
Followers ▼ 11,479
Following 0
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Founder of DEF CON & Black Hat. Member of the UK Gov Cybersecurity Advisory Board & The Council on Foreign Relations.

Working to get Hackers and Researchers a seat at the Policy table.

I'm interested in hacking, community, technology, privacy, security policy, and the intersection of civil society. (He/Him) Opinions are my own.

Previously member ONCD (2024-2025), CISA Cyber Security Advisory Council (2021-2025), and DHS Advisory Council (2009-2020)

Last posted 1 day ago
Posts 3,103
Followers ▼ 11,086
Following 1,115
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Manuel 'HonkHase' Atug
@[email protected]

20yrs Sec , Geraffel native, c-base, AG KRITIS, CSCB, , , , OT & IT-Security, working at HiSolutions, Threema.id/X9H873XJ

Last posted 2 days ago
Posts 6,805
Followers ▼ 11,079
Following 574
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Tarah Wheeler 🖖♦️
@[email protected]

♦️ CEO of Red Queen Dynamics♦️EFF Board Of Directors♦️US/UK Fulbright Scholar in Cyber Security♦️Senior Fellow, Global Cyber Policy at the Council on Foreign Relations. ♦️ Formerly Harvard, Brookings, Splunk, Symantec. ♦️she/her curmudgienne♦️standard disclaimer regarding personal opinions.♦️Searchable. t AT tarah DOT org

Last posted 1 day ago
Posts 1,583
Followers ▼ 10,271
Following 54
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D̒͂̕ᵈăᵃn̕ᶰ Ť̾̾̓͐͒͠ᵗe͗̑́̋̂́͡ᵉn̅ᶰtᵗl̀̓͘ᶫe̓̒̂̚ᵉrʳ
:: Founder, Phobos Group
:: Quad Flooper :: Scoville Addict
:: Public Speaker :: food pornographer
:: Twitter Alum (2011-2012)
:: security longhair :: tattoo'ed nerd

<script>alert(1)</script>
'>"></div><blink><marquee>visit hax.lol for a good time


Last posted Less than a day ago
Posts 40,334
Followers ▼ 9,290
Following 665
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Techlore empowers individuals with practical digital privacy knowledge, security tools, and advocacy resources. Discover how to protect your online data and regain control of your digital identity.

Last posted 3 days ago
Posts 1,180
Followers ▼ 9,267
Following 53
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Kevin Rothrock
@[email protected]

hyper-professional guy, managing editor of @meduza_en, ugly American based in Portland, Oregon (USA). Signal: @KevinRothrock.01

Last posted 1 day ago
Posts 10,800
Followers ▼ 8,379
Following 78
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Founder & CEO of runZero (@runZeroInc - runzero.com), previously the founder and lead developer of Metasploit, a CSO, a consultant, and the head of various security research teams.

My work is focused on , , , , , , , , , , and stuff. For fun I write , build projects, and in circles.

Last posted 5 days ago
Posts 1,288
Followers ▼ 7,910
Following 1,644
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SANS Internet Storm Center - SANS.edu - Go Sentinels!
@[email protected]

isc.sans.edu - Global Network Security Information Sharing Community - honeypots, firewall logs, malware. SANS Technology Institute college research project

Last posted 1 day ago
Posts 1,511
Followers ▼ 7,590
Following 16
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Security Writer
@[email protected]

Multi award-winning Security Advisor. Technical Auditor. Speaker. Author.

I specialise in organisational and operational security. I help people do better. 
Currently clean on OpSec.

Donor: Infosec.exchange donor

 

GNU Terry Pratchett

Last posted Less than a day ago
Posts 63
Followers ▼ 7,515
Following 899
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Frederic Jacobs
@[email protected]

Cryptographic & Security Engineering

Previously: Founding & Lead iOS Engineer @signalapp

Tooting on all things , European federalism, , , European , and

Last posted 2 days ago
Posts 2,583
Followers ▼ 6,943
Following 3,272
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Secure decentralized messaging for all major platforms and then some. Reliable and instant by using fast and secure Chatmail servers, but also compatible with classic e-mail providers. Offering chat-shared web apps for fun and collaboration, end-to-end encrypted and without any server side hosting. Security-Audited multiple times, last in 2024.

Last posted 1 day ago
Posts 1,838
Followers ▼ 6,893
Following 547

Displaced Philly boy. Threat hunter. Streamer. Educator. , rust, python haskell, and javascript. advocate. Runs @thetaggartinstitute. Made wtfbins.wtf. Co-creator of github.com/mttaggart/Offensive. Not your bro. All opinions my own. Dad.

Pronouns: He/him.

M.Ed | Sec+ | CISSP | eCTHPv2 | eWPT | CRTO

Last posted 1 day ago
Posts 6,403
Followers ▼ 6,714
Following 847
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Tanya Janca | SheHacksPurple verified verified
@[email protected]

Author of Alice and Bob Learn Secure Coding AND Alice and Bob Learn Application Security!
She/her/lady/woman. shehackspurple.ca

DevRel at

Secure Coding Training and Public Speaking Inquiries & other:
Tanya (at) shehackspurple (dot) ca

, 🌻

Last posted 1 day ago
Posts 2,928
Followers ▼ 6,610
Following 646
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be good, don't die
| Hacking | Shenanigans

Last posted 1 day ago
Posts 3,605
Followers ▼ 6,559
Following 554
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Hacker. Friends. Cybersecurity Researcher.

Last posted 1 day ago
Posts 372
Followers ▼ 6,346
Following 96
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Spaf is a homunculus of possible extraterrestrial origin, tilting at windmills. Cybersecurity, bad jokes, political outrage, academe, non-sequiturs, entropy. See about.me/spaf for more.

Last posted 2 days ago
Posts 3,674
Followers ▼ 6,170
Following 273
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Free Teks for sale, cheap
@[email protected]

Politics ∪ tech ∪ security ∪ privacy ∪ O_o

One-time EFF Tech Trivia champion.

Sysop of Free Radical.

I blog about this at blog.freeradical.zone/.

I’ve got your back.

Very approachable. Bring treats.

Last posted 1 day ago
Posts 41,277
Followers ▼ 6,049
Following 2,082
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Lukasz Olejnik
@[email protected]

Security & Privacy. Data protection. Research. Engineering. Strategy, communication. Analyst. Technology Policy. W3C standardisation. PhD (CS/privacy), LL.M (Information Technology Law). 
Consultant.
Reading & writing (scientific articles, sometimes op-eds, analyses, reports, books). Seems that I like it? 


email: me (at) lukaszolejnik.com. 

Books: lukaszolejnik.com/books


Twitter: @lukOlejnik

Last posted 3 days ago
Posts 2,221
Followers ▼ 5,636
Following 220