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

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

Independent security researcher.

#OPSEC #cyber #cyberwarfare #cyberintelligence #counterintelligence #espionage #history

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

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.

Investigative Tech-Reporterin Republik & Dnip.ch
Eigener Blog: techjournalismus.ch

Interests: #Netzpolitik #Privacy #InfoSec #DigitaleEthik #Technology

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

And: #cats #chess #music #redwine

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 

#Infosec #Philosophy #ADHD #Privacy #MediaPreservation

GNU Terry Pratchett

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

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 #Homelab 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

#nobridge

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

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

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)

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.

* Privacy-first digital sanctuary
⚡ Self-hosted CryptPad • Jitsi
* Open-source resistance to surveillance
* virebent.art

#OpenSource #DigitalRights #CyberPunk #Anonymity #InfoSec #Tor #Cryptography #NoTracking #DigitalRights

Senior Expert "Cyber #Security in Production" 🧐 - boostet zu #Wissenschaft 🧑‍🔬, #IT / #InfoSec / #OpSec 👨‍💻, #Biologie / #Psychologie / #Philosophie 🤔 und #Politik / #Geostrategie 🌍 sowie #Klimazerstörung / #Klimaschutz 📈- #linksgrünversifft ✅

he/his
Director of Information Security at 4DMedical.
I work primarily in #infosec, #IT, and #SaaS infrastructure.
ex #USDS (fired by #DOGE)
Dad, old-school hacker, Righteous Indignation Man. Opinions are my own. Follow my blog at @jikblog.
#COVID #CovidIsNotOver #USPol #MAPol #BosPoli #Boston #MA #politics #linux #FOSS #OpenSource #ConsumerActivism #privacy #programmer #hacker #fedi22 #resist https://justmytoots.com/@jik@federate.social

eng/deu | Privacy, Infosec, OSINT, OPSEC, OSM, CTFs, Shitposts, Echter Hacker™

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

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

#WearAMask!
She/her

I'm a friend and ally to zeroes.ca. ❤

Certified zero COVID zealot!

#fedi22 #COVID #COVIDIsAirborne #goth #infosec #ActuallyAutistic #ADHD

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

#infosec #blueteam #ebike #space #avgeek #maker

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

#Labor and #Union Starter Pack: https://fedidevs.com/s/NTMy/

https://justmytoots.com/@[email protected]ce

#MastoAdmin #FediAdmin #DNS #InfoSec #AMA #AWU #CWA #Boston #RedSox #Celtics #fedi22 #searchable #AvGeek