Comment by kreetx

Signal's messages are encrypted at rest though? Because Android and iOS are both full disk encrypted.

I do agree with that when you can't hide from the company, you can't hide from the US government either.

Regarding attacks, even if your current app is e2ee then this could be subverted by simply updating it to a newer version that isn't. Yet another is that when somebody gets full control over your phone, then no system will protect you as the device is functioning as intended (showing you the messages), it just doesn't know that it's no longer the owner of the phone reading them.