cryptography
GPT-6 Astra helped recover a 1941 Enigma key through a constrained search News
A researcher-led GPT-6 Astra project recovered and reproduced the key for the MVUEH German Army Enigma message by combining an archival crib with generated search software and billions of constrained checks.
An engineer factored RSA-260 by pointing coding agents at it News
Cognition engineer Eric Lu factored RSA-260, a 260-digit challenge number unbroken since 1991, for about $400,000 of spare GPU time, after directing the company's Devin agents to build a new GPU implementation of the standard factoring algorithm; deployed 2048-bit RSA keys are unaffected.
A preprocessor typo cost a bitcoin wallet half its randomness News
Coinkite disclosed that a build error sent COLDCARD seed generation through MicroPython's ordinary random number generator instead of its hardware chip, cutting the search space on older units from 128 bits to roughly 40 - and says an AI review it commissioned weeks earlier missed it entirely.
CADO-NFS Tool
The open-source number field sieve implementation that Cognition modified for GPUs to factor RSA-260. The canonical starting point for anyone doing serious integer factorisation work.