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Apple uses two different forms of encryption for your iCloud data – a strong form for particularly sensitive data like the Health and Journal apps, but a weaker one for a lot of other data you still wouldn’t want falling into the wrong hands.
Fortunately the company gives you the option of switching to strong encryption for all your iCloud data, and while there are a few steps involved, it’s a worthwhile security and privacy safeguard …
What’s the deal with iCloud encryption?
There are two main approaches to encrypting data:
Encryption at rest (aka ‘weak encryption’)
End-to-end encryption (aka E2EE or ‘strong encryption’)
By default, Apple uses a mix of the two, as you can see below.
The difference between them is simple, and concerns who holds a key with the ability to decrypt the data. For iCloud data:
Weak encryption: Your devices + Apple
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