9to5Mac published a story that security researchers have confirmed speculation that the T2 security chip on modern Macs can be hacked.

T2 security chip on Macs can be hacked to plant malware

Security researchers have confirmed speculation that the T2 security chip on modern Macs can be hacked. A combination of two different exploits would give a hacker the ability to modify the behavior of the chip, and even plant malware like a keylogger inside it.

T2 security chip on Macs can be hacked to plant malware - 9to5Mac