Mark C
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largecardinal.bsky.social
Mark C
@largecardinal.bsky.social
1.5K followers 190 following 170 posts
Logician (PhD), Quantum Hacker, ML miscreant. Feral academic. Co-founder of Quantum Village @ DEF CON
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largecardinal.bsky.social
(Gender Norms for brevity only)
November 11, 2025 at 9:28 PM
Reposted by Mark C
josephcox.bsky.social
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-...
Ranking member of the House Homeland Security Committee Bennie G. Thompson said in a statement “Mobile 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 “ICE officials have told us that an apparent biometric match by Mobile Fortify is a ‘definitive’ determination of a person’s status and that an ICE officer may ignore evidence of American citizenship—including a birth certificate—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.”
October 29, 2025 at 3:03 PM
largecardinal.bsky.social
Welcome!
September 1, 2025 at 2:47 PM
Reposted by Mark C
dcuthbert.bsky.social
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
August 10, 2025 at 3:49 AM
Reposted by Mark C
quantumvillage.bsky.social
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...
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 ‘t...
forms.gle
August 4, 2025 at 11:52 AM