Watch out for TrustZone. There are definitely flaws in it too, for example: https://bits-please.blogspot.com/2016/06/trustzone-kernel-privilege-escalation.html

Watch out for TrustZone. There are definitely flaws in it too, for example: https://bits-please.blogspot.com/2016/06/trustzone-kernel-privilege-escalation.html https://bits-please.blogspot.com/2016/06/trustzone-kernel-pr...