Want your AI chats to stay private? Brave TEEs up end-to-end encryption

Brave Software has set up a secure space so those using its browser can converse with the company's AI assistant in private. At a time when AI agents like Meta's Muse ask for extensive access to personal information, and AI companies repurpose conversations for training, this amounts to swimming against the tide. Following up on an experiment launched last November to implement a confidential channel for LLM conversations with the help of NEAR AI's trusted execution environment (TEE), the browser maker has connected its Leo AI assistant to Z.ai's GLM 5.3 Flash under the protection of end-to-end encryption. The result is that Brave users can submit a prompt to Leo that gets encrypted on-device and sent over the network using Oblivious HTTP, a protocol for separating network requests from associated content. Brave's AI Gateway forwards the encrypted query to the TEE without passing along the user's IP address. …