🔐DeepMind Uses AI Agents to Formally Verify Parts of Signal's Code in One Month

Your WhatsApp messages just got a little more provable

Google DeepMind just used AI to mathematically prove that parts of Signal's encryption code do what they say, with no errors. The whole job took about a month. Expert humans usually need far longer to build a proof like this by hand. If you ship security-sensitive code, this is the part to care about. The workflow was split: humans worked with agents to decide what needed proving, then multiple agents executed the proofs. The agents also audited the proof and flagged spots that needed a second human look. That's a template you can actually copy. The catch? DeepMind did not verify all of Signal's code, only portions. There are no plans to turn this into a consumer product. The researchers are open-sourcing their code, and WhatsApp and Google Messages use the same encryption as Signal, so the groundwork reaches far beyond one app.