bitchat: Offline Encrypted Messaging Through Bluetooth Mesh Networks “ When natural disasters disrupt internet access, when protests face communication blackouts, or when confidential discussions demand absolute privacy – traditional messaging apps fail. bitchat delivers truly decentralized encrypted communication using Bluetooth mesh technology, requiring zero internet infrastructure. This technical exploration reveals how it works. The Fundamental Flaws in Modern Communication Current messaging systems suffer three critical vulnerabilities: Centralized dependency: Reliance on servers and internet backbones Metadata exposure: Communication patterns and relationships are logged Single-point failure: Entire networks collapse if infrastructure fails bitchat’s architectural solution: graph LR Traditional[Traditional Apps] –> Internet –> …