Definition
A Trusted Platform Module or TPM is a dedicated microcontroller designed to secure hardware through integrated cryptographic keys. It provides a hardware root of trust for system integrity by securely storing sensitive information like encryption keys and platform identity. The TPM performs cryptographic operations and verifies the integrity of the system during the boot process, ensuring that only trusted software is loaded. This hardware based security is crucial for protecting sensitive data and preventing unauthorized access in enterprise environments. For instance, a TPM can be used to securely store the BitLocker encryption key for a Windows laptop, preventing data theft if the device is lost or stolen. Unlike software based encryption which can be vulnerable to certain attacks, a TPM offers a more robust layer of protection. You will encounter TPM concepts on CompTIA Security+, CySA+, and CISSP certification exams.