Google DeepMind's AlphaProof Code formally verifies Signal's encryption

Google DeepMind introduced AlphaProof Code on November 10, 2026, a system of AI agents that produced machine-checked Lean proofs of security properties of Signal's compiled libsignal code in about four weeks, a task that historically takes years. DeepMind plans to open-source the tool.

Read the full story at Google DeepMind Blog ↗

Timeline · 10 reports

1. 2026-11-10 16:31 · ZDNET AI
   Google’s new AI tool just proved Signal encryption really works – here’s how
2. 2026-11-10 13:08 · r/singularity
   GDM introduces AlphaProof Code, an AI framework that formally verified Signal’s core cryptographic code in just four weeks, a task that historically takes years
3. 2026-11-10 12:39 · 9to5Mac
   Google DeepMind analysis proves Signal and WhatsApp encryption is secure
4. 2026-11-10 12:37 · Unite.AI
   Google DeepMind Uses AI Agents to Verify Signal’s Core Machine Code
5. 2026-11-10 12:11 · Hacker News Front Page
   AlphaProof Code
6. 2026-11-10 12:07 · Google DeepMind Blog
   Formal Verification of Signal’s Protocol with Gemini
7. 2026-11-10 12:00 · Forbes AI
   Google AI Proves Signal’s Encryption Really Works
8. 2026-11-10 12:00 · The Register AI/ML
   Google DeepMind melds humans and AI agents to vet Signal's secure messaging techniques
9. 2026-11-10 11:55 · Techmeme
   Google DeepMind researchers used agentic AI framework AlphaProof Code to verify the Signal protocol's cryptographic guarantees, in a four-week proof-of-concept
10. 2026-11-10 05:01 · Wired AI
    A New AI Tool From Google DeepMind Proved the Signal Protocol Is Secure