The disclosure is related to a method and a system for security verification in a booting process of a computer system. A multi-core processor of the computer system is utilized to perform a security verification operation initiated by a UEFI BIOS. The security verification operation is configured to test if the computer system is qualified as a secure system for a specific use. In one aspect, the multi-core processor architecture has the benefit of providing a more efficient way to allow each of the multiple cores to perform one verification task for one of the peripherals of the system. An embodiment shows that the multiple cores can be individually assigned to perform different tasks such as verifying security of various medium in parallel processes when the computer system is in the booting process.