iCloud backups are 100% encrypted. Only some iTunes backups are not, and only if...

sametmax · on Feb 17, 2016

They are, but apple have the keys : https://thehackernews.com/2016/01/apple-icloud-imessages.htm...

So basically, they could be in clear text, it's pretty much the same.

niij · on Feb 17, 2016

Please see this link[1], Apple explains exactly how keys are stored in their datacenters (Hint: it is not in clear text). They use HSM's which destroy the user's key after 10 failed attempts.

[1]: https://www.apple.com/business/docs/iOS_Security_Guide.pdf

snuxoll · on Feb 17, 2016

This is only for Keychain escrow, device backups are not protected by HSM's.