Definition
A Trusted Platform Module TPM is a dedicated microcontroller designed to secure hardware through integrated cryptographic keys. It provides a hardware root of trust, ensuring that the system's boot process and critical operations are protected from tampering. The TPM stores cryptographic keys, platform integrity measurements, and other sensitive data securely, making them inaccessible to unauthorized software. This hardware based security is crucial for verifying the integrity of the system and protecting sensitive information like encryption keys and digital certificates. For instance, BitLocker drive encryption on Windows uses the TPM to store the encryption key, preventing unauthorized access to data if the device is lost or stolen. Unlike software based encryption which can be vulnerable to certain attacks, the TPM's hardware isolation provides a higher level of security. You will encounter TPM concepts on CompTIA Security+, CySA+, and CISSP exams.