Have you audited the code for Signal's app? Have you built and installed the app from that audited source?
Asking "have you audited the source" is such a meaningless question when you're not building from source (and auditing the compiler...), which practically nobody, not even HN users, are doing.
> And even though Chinese iPhones will retain the security features that can make it all but impossible for anyone, even Apple, to get access to the phone itself, that will not apply to the iCloud accounts. Any information in the iCloud account could be accessible to Chinese authorities who can present Apple with a legal order.
> Apple said it will only respond to valid legal requests in China, but China’s domestic legal process is very different than that in the U.S., lacking anything quite like an American “warrant” reviewed by an independent court, Chinese legal experts said. Court approval isn’t required under Chinese law and police can issue and execute warrants.
Previous to this, the data was stored on American servers and subject to American legal safeguards.
The account data will be in data and will be accessible, however the messages are not as those go direct device to device without ever being plaintext on Apple's servers.
You're missing the point. iCloud access can't get you access to iCloud messages. Those are encrypted on the devices and the keys are on the devices, not in Apple data centers.
