iPhone Whatsapp messages encrypted in the iCloud?

[electronicsguy]

So the is it the Whatsapp end to end encryption not readable (messages) for Apple?l in the iCloud?

Yes (theoretically) it shouldn't be. But just as with ANY encryption scheme, it depends on the actual implementation. If they've been sloppy with their keys, or have not properly encrypted all data before pushing it to icloud, there may be a chance that someone could crack it easily.

The TLS standard is good enough to provide internet security. However, bugs like heartbleed, GnuTLS bug or GotoFail bug show that the implementation can override theoretical security.

 

[electronicsguy]

Apple can only read your messages if they have the passcode to your phone.

theoretically, not necessarily, a practical roadblock.