[mmooss]

How do you know what they installed? Also, I understand that GrapheneOS installs are very simple now.

[vhcr]

https://www.cs.cmu.edu/~rdriley/487/papers/Thompson_1984_Ref...

[HybridStatAnim8]

GrapheneOS provides verification steps at the end of both installation methods to ensure your install is genuine.

[harvey9]

I should have been explicit: I used the GrapheneOS webpage. I am placing my trust in them but I am not under any particular threat and just liked that they have stated they won't support age verification.

[Cider9986]

Auditor [1] might work. But GrapheneOS recommends flashing yourself.

[1] attestation.app