copperheadOS: Samsung missing security features needed for Android Verified Boot

Samsung Galaxy S9 / S9+ is missing hardware-backed key rollback resistance, per-profile encryption keys (lacks file-based encryption), A/B updates and Android Verified Boot 2.0.

It's very telling that anything Google doesn't make into a hard requirement doesn't get implemented.

— CopperheadOS (@CopperheadOS) April 12, 2018