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Mark C

@largecardinal.bsky.social

Logician (PhD), Quantum Hacker, ML miscreant. Feral academic. Co-founder of Quantum Village @ DEF CON

1,485 Followers  |  190 Following  |  170 Posts  |  Joined: 01.07.2023  |  1.6457

Latest posts by largecardinal.bsky.social on Bluesky

I'm trying a new "see how well AI image gen is" test. This time I'm going to ask it to draw a map of the world, and then zoom in to Europe, the UK, Yorkshire and York to see when things start to get hazy.

All of these are with the free models using the smart/thinking variants. 1/n

27.01.2026 12:03 β€” πŸ‘ 145    πŸ” 60    πŸ’¬ 4    πŸ“Œ 50

It did. Very distasteful.

08.01.2026 23:13 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
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The Conscience of a Hacker, also known as The Hacker Manifesto, turns 40 today!

Written by Loyd "The Mentor" Blankenship, its spirit still resonates with hackers and makers everywhere. A cornerstone of hacker culture.

phrack.org/issues/7/3

#HackThePlanet #HackerManifesto

08.01.2026 22:11 β€” πŸ‘ 69    πŸ” 46    πŸ’¬ 1    πŸ“Œ 7

"Tunbridge Wells is without water..."

Guess that name was a sodding lie, then...

08.01.2026 18:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

How did the cyber criminal get away? He ran somewhere...

12.12.2025 11:46 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

(Gender Norms for brevity only)

11.11.2025 21:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I realised, of course kids can understand quantum... Assume β€–Genderβ€–Β²; if a kid asks their mum a question, ans yes/no are equally likely. That's superposition. Once they get the answer, it won't change. That's measurement. If they want a different answer, they ask their dad. That's entanglement.

11.11.2025 21:28 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Was this inspired by a monoidal category, or something?

www.bbc.com/news/article...

04.11.2025 08:36 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Exclusive: Apple alerts exploit developer that his iPhone was targeted with government spyware A developer at Trenchant, a leading Western spyware and zero-day maker, was suspected of leaking company tools and was fired. Weeks later, Apple notified him that his personal iPhone was targeted with...

This story from @lorenzofb.bsky.social is absolutely wild. Totally worth a read!
techcrunch.com/2025/10/21/a...

22.10.2025 21:29 β€” πŸ‘ 25    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
Ranking member of the House Homeland Security Committee Bennie G. Thompson said in a statement β€œMobile Fortify is a dangerous tool in the hands of ICE, and it puts American citizens at risk of detention and even deportation.” He also said β€œICE officials have told us that an apparent biometric match by Mobile Fortify is a β€˜definitive’ determination of a person’s status and that an ICE officer may ignore evidence of American citizenshipβ€”including a birth certificateβ€”if the app says the person is an alien. ICE using a mobile biometrics app in ways its developers at CBP never intended or tested is a frightening, repugnant, and unconstitutional attack on Americans’ rights and freedoms.”

Ranking member of the House Homeland Security Committee Bennie G. Thompson said in a statement β€œMobile Fortify is a dangerous tool in the hands of ICE, and it puts American citizens at risk of detention and even deportation.” He also said β€œICE officials have told us that an apparent biometric match by Mobile Fortify is a β€˜definitive’ determination of a person’s status and that an ICE officer may ignore evidence of American citizenshipβ€”including a birth certificateβ€”if the app says the person is an alien. ICE using a mobile biometrics app in ways its developers at CBP never intended or tested is a frightening, repugnant, and unconstitutional attack on Americans’ rights and freedoms.”

New incredible detail here: ICE says a match in its facial recognition app Mobile Fortify is a "definitive" determination of a person's status, and that this overrides birth certificates. This is an app ICE is using in the field to scan people

www.404media.co/ice-and-cbp-...

29.10.2025 15:03 β€” πŸ‘ 6042    πŸ” 3415    πŸ’¬ 216    πŸ“Œ 946
Screenshot of a LinkedIn post:

"Quantum Just Drew a Line in the Sand.

Google's Willow 105-qubit chip didn't just outperform a supercomputer -- it ended the classical era of computing as we know it."

Screenshot of a LinkedIn post: "Quantum Just Drew a Line in the Sand. Google's Willow 105-qubit chip didn't just outperform a supercomputer -- it ended the classical era of computing as we know it."

I guess he's posting from inside his dil fridge.

24.10.2025 17:28 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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This is the funniest thing I've seen just before having to take my ibuprofen...

24.10.2025 18:56 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
myF5

I'm sure this is a totally normal key rotation...

my.f5.com/manage/s/art...

15.10.2025 06:47 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Dis-content creators

07.10.2025 06:45 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Nobel committee unable to reach prize winner who is β€˜living his best life’ hiking off grid Fred Ramsdell was among those honoured with a 2025 Nobel Prize in Medicine but might not know because he is somewhere in Idaho and uncontactable

Goals...
www.theguardian.com/science/2025...

07.10.2025 06:35 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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CCC | Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress! Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen fΓΌr Informationsfreiheit und TechnikfolgenabschΓ€tzung.

Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress and please submit! The deadline for all submissions for the stages is October 24. #39C3 will take place from December 27 to 30 www.ccc.de/en/updates/2...

27.09.2025 23:14 β€” πŸ‘ 34    πŸ” 18    πŸ’¬ 0    πŸ“Œ 0

The government bailing out JLR will send a strong signal to e-crime groups to retarget to the UK.

28.09.2025 10:02 β€” πŸ‘ 53    πŸ” 10    πŸ’¬ 5    πŸ“Œ 4

Tired: AI slop from LLMs
Wired: discontent creators

21.09.2025 21:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Extremely offended by a spider spinning its web across an abandoned project that I've been planning to work on any day now actually

01.09.2025 14:33 β€” πŸ‘ 137    πŸ” 11    πŸ’¬ 6    πŸ“Œ 1

Welcome!

01.09.2025 14:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Hi, I am here! Will mostly post about Quantum Foundations/Computing and Quantum Music.

01.09.2025 09:48 β€” πŸ‘ 48    πŸ” 10    πŸ’¬ 9    πŸ“Œ 0

A lot of people seem to live by the maxim; "it's not basic if I have complicated feelings about it..."

30.08.2025 12:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

my mom to my kid: have you ever actually dialed a phone?

my kid: yeah! I did it in a museum πŸ’€

29.08.2025 20:47 β€” πŸ‘ 830    πŸ” 46    πŸ’¬ 39    πŸ“Œ 11

When I was in undergrad our engineering building had old computers set up in a little museum/history section and they included the first Macintosh from 1984

29.08.2025 20:54 β€” πŸ‘ 22    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
Authenticated Transfer

datatracker.ietf.org/doc/bofreq-n... πŸ‘€πŸ‘€

29.08.2025 20:21 β€” πŸ‘ 118    πŸ” 27    πŸ’¬ 6    πŸ“Œ 9

We also made @wired.com ! www.wired.com/story/fully-...

29.08.2025 14:56 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Then to wrap up, @largecardinal.bsky.social and his jolly adventures being a diamond consumer that excites things with many legs in order to create a hackable quantum sensing platform based on diamond nitrogen-vacancy centres.

MIND f**ken blown. Badge lyfe isn’t about blinky lights anymore

10.08.2025 03:49 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
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Call for Challenges The Quantum Capture the Flag (Q-CTF) - NOW AN OFFICIAL DEF CON CONTEST!! This year, Is the International Year of Quantum and our theme is Access All Atoms; from how to hack quantum networks to how β€˜t...

Whether your specialty is quantum computing, networking, sensing, cryptography, hardware hacking, reverse engineering, AI + quantum mashups, or just mind‑bending puzzles… we want your best! Please repost for reach!

Submit Here: forms.gle/9zfrQ1FMkDKG...

04.08.2025 11:51 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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πŸš€ Call for Challenges: Quantum Village Q-CTF @ DEF CON 33 βš›οΈ

Quantum Village is back at DEF CON 33 with our Quantum- Capture the Flag and we’re looking for Quantum Quizmasters! πŸ”—β€΅οΈ

#QuantumVillage #DEFCON33 #QCTF #HackTheQubit

04.08.2025 11:51 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

What happens when quantum tech meets 30,000 hackers in Vegas?
πŸŽ™οΈ On the latest Post-Quantum World, host Konstantinos Karagiannis previews DEF CON 33 and the fourth year of Quantum Village with guests Mark Carney & Victoria Kumaran.

#QuantumVillage #DEFCON33 #QuantumTech #PostQuantumWorld

24.07.2025 12:43 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

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