In November 2020, Microsoft unveiled Pluton, a security processor that the company designed to thwart some of the most sophisticated types of hack attacks. On Tuesday, AMD said it would integrate the chip into its upcoming Ryzen CPUs for use in Lenovo's ThinkPad Z Series of laptops.
Microsoft already used Pluton to secure Xbox Ones and Azure Sphere microcontrollers against attacks that involve people with physical access opening device cases and performing hardware hacks that bypass security protections. Such hacks are usually carried out by device owners who want to run unauthorized games or programs for cheating.
Now, Pluton is evolving to secure PCs against malicious physical hacks designed to install malware or steal cryptographic keys or other sensitive secrets. While many systems already have trusted platform modules or protections such as Intel’s Software Guard Extensions to secure such data, the secrets remain vulnerable to several types of attacks.
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source https://arstechnica.com/?p=1823688