Meta adds proof-based security to encrypted backups
Meta has updated its infrastructure for protecting password-based and end-to-end encrypted backups, introducing over-the-air fleet key distribution for Messenger and a commitment to publishing evidence of secure fleet deployments. How encrypted backups work These updates build on the company’s HSM-based Backup Key Vault, which provides end-to-end encrypted backups for WhatsApp and Messenger. The system protects users’ backed-up message history with a recovery code stored in tamper-resistant hardware security modules (HSMs) that are inaccessible to Meta, … More
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