Comment on Dear Apple: add “Disappearing Messages” to iMessage right now by hope

['Matthew Green', "I'M A Cryptographer", "Professor At Johns Hopkins University. I'Ve Designed", 'Analyzed Cryptographic Systems Used In Wireless Networks', 'Payment Systems', 'Digital Content Protection Platforms. In My Research I Look At The Various Ways Cryptography Can Be Used To Promote User Privacy.'] Comments for A Few Thoughts on Cryptographic Engineering 2025-03-01 00:00:00

A separate feature of disappearing messages is that some platforms will omit these conversations from device backups, or at least they’ll make sure expired messages can’t be restored. Third, Apple advertises a feature called Messages in iCloud, which is designed to back up and sync your messages between devices. Messages in iCloud may be encrypted, however… If you use iCloud Backup without ADP (which is the default for new iPhones) the Messages in iCloud encryption key itself will be backed up to Apple’s servers in a form that Apple itself can access.