Tinker, Sailor, Biker, Hi

I do industrial security research for a living, mostly looking for #vulnerabilities in all of the wrong places. I like reverse engineering how PLC logic systems function under the hood, learning how safety instrument protocols work, and figuring out what malicious threat groups are doing and can do with access to such systems. A long time ago, I invented the term 'foreverday' to describe unfixable vulnerabilities.

Occasionally I analyze #industrial #malware, too, and on very rare occasions encounter threat groups that actually write malicious logic to do the vile things that I like to learn about.

I work for a little startup in the space called Dragos. In my spare time I enjoy long distance #bicycling, #sailing, and doting on our #pets.

I used to have an account on :birdsite:, however I haven't used it in a while and you should no longer assume that it's under my control.

Trying not to be one of the 80% that can be moved in either direction.

Mozilla Firefox security

IT person, video game player, knowledge lover. Love to read interesting stories & watch #ttrpgs. tfr

No longer teaching, but still studying cybersecurity. Stuck behind the helpdesk ticketing system.
I sometimes help out with WRCCDC. Likely needs a nap and favorite snacks.
West coast thoughts and tangents abound.
Certified failed gifted child.

I am an US Army veteran with a passion for keeping my brain churning. After the Army, I lived a life dabbling in nuclear, technology, security in various forms, and some other things.

Oppression breeds rebellion

Signal: MrGuru.32

Bringing CTI out of the closet since 2025.

Customer Reviews:

"The threat intelligence so cool you can't talk about in Florida"

"it’s… so beautiful 🥹🌈" -Will B

"GAYINT is my favourite TI platform on the Citadel" -MustardFacial

"I like my CTI like I like my partners. Authentic and a little kinky." -Seven

"the pewpews are better left to the professionals over at gayint " -BurritoSec

"<3" -Ian Campbell

"I now get my intel from an account called GAYINT" -Kevin Beaumont

#GAYINT :gayint:

Security stuff at a fruit company. Little spare time with 3 young kids. I remember doing cycling, photography, some mechanical tinkering…
🏳️‍🌈👨‍💻🇳🇱🚲🚝🔐🍎

Remember: outrage and panic are common content engagement tactics.

"Play is not a trivial thing: If we don’t play, then what are we living for?" — Andrea Colamedici

Working in IT security and currently working heavily with #microsoft365 and #identity #iam. Not a dog, I swear.

Toots are personal, and I usually do them on the bathroom, unless I am alone in the room.

Infosec researcher | Find me @ https://shellsharks.com

#fedi22 #infosec #cybersecurity #tech #indieweb #apple searchable

Profile picture: A red shark holding a terminal window shaped like a surfboard. The terminal reads “> whoami shellsharks”

https://keyoxide.org/FA7AC5E3626AEF016A5AD0BB172E73E0A585273E

Middle-aged, angry, and depressed. I used to mess with computers, like, for money, sometimes even with health insurance. Learning to munge PLCs, VFDs, and other DIN rail gizmos at a not-so-local local VocTec. OpenBSD and Plan 9 fan. Known to code in MurderPASCAL (Ada), Lisp and Scheme. Mainframe-curious.
Avi by Al Foreman of poisonedminds/SSDD

Posts autodelete after 1 week.

Infosec by day, sleep by night.
Grounded Aviation Nerd
Mediocre Gamer
Fresh Air Enjoyer

The internet is lit with the flame of the eternal dumpster fire.

All toots self destruct.

Signal available upon request.

Director - Information Security Engineering and Architecture at Sinch

Home automation and occasionally soldering

EFF contributor, Yubico fanboy, dreaming of electric sheep

Former lecturer in computer science at Linnaeus University and Infosec Specialist at the Swedish eHealth Agency.

Cat? Adventures in parenting and InfoSec management, sometimes both at the same time. Cat? Polite and informative, focusing on practicality and efficiency.
#LongCOVID #ThreadZilla #GRC #Infosec
Header image: a mouse wearing a crown and a sword riding a cat wearing a horses bridle
Profile image: an orange cat sleeping on a pair of lady bug pillows

In love with sounds, computer science and cybersecurity.
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“Imagine there's no countries
It isn't hard to do
Nothin' to kill or die for
And no religion, too”
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Nonbinary Iowan, journalist, teacher, writer, tech nerd. I like privacy, cows, and ttrpgs.

🇺🇸 🇺🇦 🏳️‍🌈



My security newsletter and live content are published by iPhone Life but all my posts and boosts here are my own and don't represent my employer.

Pom in Oz, I stare at firewall logs for a living. Recently promoted to senior tech, still don't know what I'm doing so faking it until I make it. Outside of work: computer games, scuba diving, martial arts and natural movement.

I do various offsec stuff.

Here is my personal node:
https://mast.2enp.cc/@garretsidzaka

Cyber security researcher and blogger