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Michael Boelen
@[email protected]

Founder of CISOfy; author of tools rkhunter and Lynis; involved with NLUUG, and ; helping companies to secure their environment; interested in and sharing messages in English, sometimes in Dutch 🇳🇱. My Dutch-only account is also @mboelen (mastodon.nl).

Last posted 1 day ago
Posts 2,998
Followers ▼ 6
Following 193
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Dave Rahardja
@[email protected]

Anti-DEI is white supremacy. Black lives matter. LGBT+ rights are human rights. Healthcare, security, a decent income, and housing with dignity are human rights. Abortion is healthcare. Science is our best hope as a species. Kindness and empathy are the noblest of human traits.

No alt-text = no repost.

Do not feed the trolls; block them.

He/him.

Fuck AI slop.

pfp: a silhouette of a man’s head framed against purple and blue lines

banner: A row of colorful sports cars

Last posted Less than a day ago
Posts 14,097
Followers ▼ 6
Following 945
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Last posted 1 day ago
Posts 1,439
Followers ▼ 6
Following 193
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DNS Inspector
@[email protected]

DNS Inspector is a free & libre open source iOS app for performing advanced DNS queries on the go. From the creators of @tlsinspector.

Last posted 1 day ago
Posts 21
Followers ▼ 6
Following 3
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Adam Shostack donor rebelverified
@[email protected]

Author, game designer, technologist, teacher.

Helped to create the CVE and many other things. Fixed autorun for XP. On Blackhat Review board.

Books include Threats: What Every Engineer Should Learn from Star Wars (2023), Threat Modeling: Designing for Security, and The New School of Information Security.

Following back if you have content.

Last posted 1 day ago
Posts 11,103
Followers ▼ 6
Following 678
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Investigative Tech-Reporterin Republik & Dnip.ch
Eigener Blog: techjournalismus.ch

Interests:

Awards for the years: 2018, 2020, 2021, 2023 and 2024.

And:

Last posted 1 day ago
Posts 631
Followers ▼ 6
Following 209
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Security Writer donor
@[email protected]

Multi award-winning Security Adviser. 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 1 day ago
Posts 37
Followers ▼ 6
Following 934
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RedPacket Security
@[email protected]

security researcher
good guy hacker
AI tinkerer
OSCP certificate owner
ADHD Brain owner
buymeacoffee.com/redpacketsec

Last posted Less than a day ago
Posts 57,321
Followers ▼ 5
Following 3
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IT admin/automation engineer in the SCADA world. Privacy, security, libre nerd. Fedi since ~2019.

I like disc golf, D&D, music, plants, reading, and gaming.

Happy to answer any questions!

Proud ally 🏳️‍🌈🏳️‍⚧️

Signal available on request

Generally accepts follow requests if we’ve interacted and/or your profile looks like a real person.

He/him

Last posted 1 day ago
Posts 3,745
Followers ▼ 5
Following 654
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Electrospaces
@[email protected]

Insights in Signals Intelligence, Communications Security and Top Level Telecommunications equipment. Photo: White House Situation Room

Last posted 1 day ago
Posts 898
Followers ▼ 5
Following 420
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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 1 day ago
Posts 5,963
Followers ▼ 5
Following 167
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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 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 3,757
Followers ▼ 5
Following 1,140
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My camera shoots fascists
@[email protected]

Things I do: landscape, storm and protest photography; paragliding, climbing, river running, outdoor adventure; border and human rights activism.

Intellectual hobbies: science, nature, security/privacy, online sociality. Learning Spanish.

My fine art prints are available on my website.

Welcome newcomers. You'll like it here, but give it some time.

Profile photo: white guy in a baseball cap with an iguana on my shoulder. Banner: "Aneurysm for President 2026" in patriotic red, white and blue.

Last posted Less than a day ago
Posts 11,111
Followers ▼ 5
Following 1,406
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* Privacy-first digital sanctuary
⚡ Self-hosted CryptPad • Jitsi
* Open-source resistance to surveillance
* virebent.art

Last posted 1 day ago
Posts 58
Followers ▼ 5
Following 42
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Senior Expert "Cyber in Production" 🧐 - boostet zu 🧑‍🔬, / / 👨‍💻, / / 🤔 und / 🌍 sowie / 📈-

Last posted 1 day ago
Posts 7,621
Followers ▼ 5
Following 592
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Jonathan Kamens 86 47
@[email protected]

he/his
Director of Information Security at 4DMedical.
I work primarily in , , and infrastructure.
ex (fired by )
Dad, old-school hacker, Righteous Indignation Man. Opinions are my own. Follow my blog at @jikblog.
justmytoots.com/@jik@federate.

Last posted 1 day ago
Posts 16,686
Followers ▼ 5
Following 2,706
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eng/deu | Privacy, Infosec, OSINT, OPSEC, OSM, CTFs, Shitposts, Echter Hacker™

Account managed by team; personal posts are signed with /s

Last posted 1 day ago
Posts 8,908
Followers ▼ 4
Following 1,013
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Kim Crawley (she/her) 😷🍉
@[email protected]

Cybersecurity writing, and former professor at the Open Institute of Technology.

Previously IOActive, Venafi, AT&T Cybersecurity, BlackBerry, Hack The Box, Synack, Tripwire

Author of:

The Pentester Blueprint via Wiley Tech
Hacker Culture: A to Z available now via O'Reilly Media
Ultimate Cybersecurity Careers Guide

!
She/her

I'm a friend and ally to zeroes.ca. ❤

Certified zero COVID zealot!

Last posted 1 day ago
Posts 6,634
Followers ▼ 4
Following 1,127
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Lead Privacy Expertise Centrum @ SURF | infosec | typoqueen | Grunn | Veluwe | wine | food | Venezia | Ducati | cats 😊 | ♡ CC0, art, books, movies, literature | motorbike trails & camping | Woman of WICCA | own views and silliness
~ the Netherlands ¯\_ (ツ) _/¯

🇳🇱 🇪🇺 🇬🇧 🇧🇪 🇨🇵 🇮🇹 🟨⬜️🟪⬛️
Own photographs (unless credits)
Unfriendly people = block
Toots vaporise after a month

Last posted 1 day ago
Posts 887
Followers ▼ 4
Following 867
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Last posted 1 day ago
Posts 136
Followers ▼ 4
Following 1,057
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Tim W RESISTS
@[email protected]

I am an admin of The Union Place, and a proud AWU-CWA Local 9009 member.

I'm a Staff SRE at Google, but all opinions are my own, and this account and instance are in no way sponsored by or associated with Google.

I'm always open to answering questions, so just ask!

and Starter Pack: fedidevs.com/s/NTMy/

justmytoots.com/@[email protected]

Last posted 1 day ago
Posts 6,731
Followers ▼ 4
Following 3,694