At-rest encryption that's actually applied
Sensitive data in the database — memories, conversations, profiles, contacts, capsule texts and protected billing data — is encrypted field by field with AES-256-GCM: a database dump would not make these contents readable without the corresponding cryptographic key. Files attached to capsules are stored on a dedicated volume encrypted at block level with LUKS2 and not publicly exposed to the network. Backups are in turn encrypted with AES-256.
Only the structural data needed for the AI to work (category tags, sensitivity flags, semantic vectors for search) stays in the clear. Everything you read, write and remember is encrypted.