Measuring LLMs’ Ability to Perform Cryptanalysis

A collection of Bruce Schneier blog posts covering emerging security and privacy issues. Key topics include frontier LLMs discovering cryptanalytic attacks against historical cryptographic schemes; widespread privacy implications of license-plate readers, AI video surveillance, and mobile cell-site simulators; policy debates over end-to-end encryption; and account takeover via phishing and stolen MFA codes. The cryptanalysis benchmark reports novel potential attacks against SpoC AEAD and KINDI’s published security proof, but these are research findings rather than confirmed real-world exploTIs