> However, it still remains that the secret is sitting in plain text on a hard drive on the phone. If you unplug/unsolder the hard drive, you could just read it

> However, it still remains that the secret is sitting in plain text on a hard drive on the phone. If you unplug/unsolder the hard drive, you could just read it, like a PC. "In plain text"... on a disk that is fully encrypted. Full-disk encryption has been available in Android for several years, and required for almost all of that time.