Earlier quoted context omitted.
> have an Android device beside me that regularly asks me to back my device up to the cloud But is that backup encrypted? If it's not, all they need is to access your data. This is about having access to backups that are theoretically encrypted with a key Apple doesn't have? > We're talking about the largest back door I've ever heard of. Doesn't the US have access to all the data of non US citizens whose data is stor…
Android data isn't encrypted at rest (or at least not in a way Google doesn't have the key). If the uk gov has a warrant, they can ask Google to provide your Google Drive content. The whole point of this issue is Apple specifically designed ADP so they couldn't do that.
So not hugely secure for most people if they use 4-6 decimal digits, but possible to make secure if you set a longer passphrase.
I don't know what Google's going to do about this UK business.
edit: Ah it looks like they have a Titan HSM involved as well. Have to take Google's word for it, but an HSM would let you do rate limits and lockouts. If that's in place, it seems all right to me.