Felipe Servin, CEO & Founder of Sati, described how Sati delivers a Bitcoin wallet entirely through WhatsApp. “It’s really, really simple, fully noncustodial,” Servin said. He added that Sati never holds private keys, ensuring users retain full control. The approach aims to accelerate Bitcoin adoption without requiring new app installs. Users start by sending a message to a WhatsApp bot, choose a PIN, and the app combines that PIN with a fingerprint of their phone to scramble and store the wallet data only on their device. Because Sati never has access to the scrambled data or PIN, only the user can unlock and ... (full story)