Typical severity: High. Likelihood of attack: Medium. An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Restrict access to private keys from non-supervisory accounts | Restrict access to administrative personnel and processes only | Ensure all remote methods are secured | Ensure all services are patched and up to date