1/ Private cloud backups keep your data available. But the moment you add real privacy (encryption), you inherit a brutal tradeoff: If you lose your decryption key (or forget the password, lose devices, etc.), your encrypted backup becomes a perfectly protected brick.

2/ In a recent research paper coauthored by a member of our research team explores a spicy question: Can you recover encrypted data from the cloud even if you don’t remember anything - without giving up privacy?

3/ The idea combines: ⚪ Credential-less authentication: prove you’re you without passwords/keys) ⚪ TEE-based emergency recovery: secure re-encryption inside a hardware enclave ⚪ Ledger-backed verification so the server can’t fake the “proof”

4/ If you care about self-custody, wallet recovery, and the real privacy-vs-availability tradeoff, this one’s worth the read. 👇