What is a TPM?

You may have seen messages from Microsoft saying that it's Windows 11 operating system will require a TPM (Trusted Platform Module). But what is a TPM?

What is a TPM?

A TPM is a small chip on your motherboard, usually separate from the CPU, which works as an authenticator for the computer.

When you turn on your computer, the TPM will generate a unique code (cryptographic key) which will allow the computer to unlock any drive encryption and start up.

If there is a problem with this key, the computer will not boot up.

A Trusted Platform Module (TPM) chip

Virtual TPM

A TPM can also be virtual. This type of TPM runs completely through software. Generally this type is not recommended however as it may be vulnerable to tampering through any security bugs in the operating system.

Apple T2 Chip

Apple's T2 security chip is essential a TPM, although Apple does not use that exact term.

https://www.apple.com/mideast/mac/docs/Apple_T2_Security_Chip_Overview.pdf