You're referring to Plundervolt? At a glance it could be used to extract private keys from e.g. FIDO2 platform authenticators. I don't know how widespread SGX u

You're referring to Plundervolt? At a glance it could be used to extract private keys from e.g. FIDO2 platform authenticators. I don't know how widespread SGX use is at this point, but it already shows up in common Windows Hello flows, 1Password, some crypto wallets, and will probably be fairly common in passkey implementations. Based on that I'd say it's fair to disable undervolting for security reasons.