NSA backdoor? Maybe, hardware/firmware backdoors are a thing.īasically anyone who has a backdoor to FileVault is going to get your stuff whether it is encrypted (with another product with no backdoor), deleted, or not. That is proprietary, and no one knows what it does. There is no guarantee that there are not back-doors in the Skylake CPU either, and it does have a new secure microcode component in it that can run code in the CPU independent of the OS. Oh, and if you don't trust FileVault, then you may as well get rid of your Mac. It has the additional benefit of protecting stuff you haven't deleted yet. The only real alternative is encryption, to get some measure of privacy to prevent someone recovering your deleted stuff. Secure delete is gone and not coming back. Which is not controlled by the operating system. Sure, they may have slightly different purposes, but if you're using an SSD the methods used by utilities to securely erase data are not reliable unless you write large, excessive wear inducing amounts of data to your SSD to get around the wear levelling in the SSD controller.

Secure empty trash mac os big sur