Patent ID: 11860999
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A method implemented by a system on a chip (SOC), the method comprising:
receiving, at a trusted platform module (TPM) implemented in the SOC, a personal identification number (PIN) in an attempt to access a system protected by the TPM;
determining a TPM state PIN-attempt-failure count for the PIN satisfies a PIN-attempt-failure count policy, the TPM state PIN-attempt-failure count being stored by the TPM;
blowing a fuse of the SOC;
incrementing a blown-fuse count of the SOC;
in response to determining the PIN is correct, clearing the TPM state PIN-attempt-failure count; and
setting a TPM state fuse count stored by the TPM based on the blown-fuse count.