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FEDIDEVS

4041 awesome Security accounts on Mastodon.

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DEF CON is the world's most influential hacker conference. Held every year since 1993 in Las Vegas, Nevada, DEF CON is the hub of a global community of hackers, security geeks and curious technophiles.

Last posted 2 days ago
Posts 1,845
Followers ▼ 16,678
Following 697
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Hacker, CEO of SocialProof Security: security awareness/social engineering training, vids, talks, tests, 3X @Defcon🥈, Chair of the WISP board, Tech Advisory Council for @Cisagov

Last posted 2 days ago
Posts 450
Followers ▼ 16,664
Following 1,462
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Zack Whittaker
@[email protected]

Security editor, TechCrunch
Email: [email protected]
Signal: zackwhittaker.1337
New York, NY

Last posted 1 day ago
Posts 2,474
Followers ▼ 16,309
Following 420
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Michał "rysiek" Woźniak · 🇺🇦
@[email protected]

Hacker, activist, free-softie ◈ techie luddite ◈ formerly information security and infrastructure at isnic.is/ and occrp.org/ ◈ my opinions are my own etc.

(he/him)

profile image: drawing of a head and shoulders of a cat-person, in a space suit.

banner image: long-exposure photo of a large tent, brightly illuminated from inside, looking as if it is made of lava

(public toots CC By-SA 4.0 if applicable)

🇪🇺 🇵🇱 · 🇧🇦 🇮🇸 · 🇺🇦

Last posted 1 day ago
Posts 45,945
Followers ▼ 15,624
Following 3,815
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Matthew Garrett
@[email protected]

Former biologist. Actual PhD in genetics. Security at Nvidia, OS security teaching at ischool.berkeley.edu. Blog: mjg59.dreamwidth.org. He/him.

Last posted 2 days ago
Posts 5,032
Followers ▼ 15,329
Following 170
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Reporter covering security at Ars Technica. DM me on Signal: DanArs.82.

Last posted 1 day ago
Posts 4,708
Followers ▼ 14,651
Following 1,132
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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 1,623
Followers ▼ 13,506
Following 637
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I know a thing or two about AirPods. App developer, security researcher. 🏳️‍🌈🧩

Last posted 5 days ago
Posts 702
Followers ▼ 13,276
Following 259
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Privacy Guides
@[email protected]

Privacy Guides is a socially motivated website that provides information for protecting your data security and privacy.

We are a non-profit project with a mission to inform the public about the value of digital privacy, and about global government initiatives which aim to monitor your online activity. Our website is free of advertisements and not affiliated with any of the listed providers.

Last posted 5 days ago
Posts 336
Followers ▼ 12,110
Following 16
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Journalist - cybersecurity/national security. Author COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon. Speaker/Signal. Newsletter is called Zero Day. Find it here: zetter-zeroday.com/. Become a paid subscriber to help support my independent journalism.

Last posted 2 weeks ago
Posts 365
Followers ▼ 11,958
Following 530
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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 Less than a day ago
Posts 828
Followers ▼ 11,868
Following 0
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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 1 day ago
Posts 6,939
Followers ▼ 11,157
Following 577
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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 2 days ago
Posts 3,162
Followers ▼ 11,121
Following 1,116
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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 2 weeks ago
Posts 1,585
Followers ▼ 10,278
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 41,994
Followers ▼ 9,347
Following 664
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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 2 weeks ago
Posts 1,190
Followers ▼ 9,292
Following 53
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Justin Ling🆒️
@[email protected]

Freelance investigative journalist — national security, disinformation, conspiracy theories, extremism, Russia/Ukraine, policing. 🕵‍♂️

Contributor to the Toronto Star, WIRED, The Walrus, Foreign Policy

Last posted 1 day ago
Posts 1,371
Followers ▼ 9,000
Following 871
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Jeremi M Gosney verified
@[email protected]

Distinguished Engineer at GEICO Cyber. Your friendly neighborhood password cracker. Member of blobcatrainbow and the core development team. I also help run , @BSidesLV, and @hushcon.

Former CEO of Terahash, creator of the Brutalis. Author of hmac-bcrypt and Pufferfish2 🐡. OIF/OEF veteran 🪖 and former 97E 🕵🏼‍♂️. Married to @baybedoll💍 and living in Texas 🤠

Primarily interested in , , , and , , , computing, , , , development, , , , . linux fedora redhat ubuntu terminal rust

Last posted 1 month ago
Posts 1,055
Followers ▼ 8,455
Following 799
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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 Less than a day ago
Posts 11,190
Followers ▼ 8,419
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 1 day ago
Posts 1,294
Followers ▼ 7,945
Following 1,689