Instead of decoy passcode why not have secret passcode to access your illicit data? Then your normal passcode looks legit, while your illicit passcode keeps dat

Instead of decoy passcode why not have secret passcode to access your illicit data? Then your normal passcode looks legit, while your illicit passcode keeps data leaks, zero days, cp, state secrets, manifestos, money laundering, etc, and the partition is encrypted at rest.