12/13/2023 0 Comments Master key lock boxThe TPM has the built-in ability to detect and react to these types of attacks. For BitLocker-protected computers, this type of attack, also known as a dictionary attack, requires that the attacker has physical access to the computer. A brute force attack occurs when an attacker uses an automated tool to try different PIN combinations until the correct one is discovered. It's possible that a personal identification number (PIN) can be discovered by an attacker performing a brute force attack. If Secure Boot for integrity validation is being used, it will be report Uses Secure Boot for integrity validation. BitLocker can be checked if it uses Secure Boot for integrity validation with the command line manage-bde.exe -protectors -get C.Updates to UEFI\BIOS firmware, installation of additional UEFI drivers, or UEFI applications without using the Windows update mechanism (only if BitLocker doesn't use Secure Boot for integrity validation during updates).Manual or third-party updates to secure boot databases (only if BitLocker uses Secure Boot for integrity validation).Non-Microsoft application updates that modify the UEFI\BIOS configuration.It's recommended that users test their TPM firmware updates if they don't want to suspend BitLocker protection. Users don't have to suspend BitLocker if the TPM firmware update uses Windows API to clear the TPM because in this case, BitLocker will be automatically suspended. Not every TPM firmware update will clear the TPM.
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