https://twitter.com/WhatsApp/status/1436345418497990662
WhatsApp is the leading global messaging service to offer *both* end-to-end
encrypted messaging and backups on iCloud or Google Drive.
So you can make sure that bestie’s voice messages and mum’s secret recipe
will be safely stored in a place only you can access.
https://twitter.com/WhatsApp/status/1436345419852775426
Developing end-to-end encrypted backups was an incredible technical
challenge: an entirely new framework for key and cloud storage.
With encrypted backups they are only accessible to you, so that neither
WhatsApp nor the backup service provider can access or decrypt the messages.
之前已有端对端传输加密，现在又有端对端备份加密。
脸书趁最近苹果 CSAM 扫描风暴，反将 iMessage 一军。
<del>要做坏事</del>注重隐私人士可以回归 WhatsApp 了