https://wccftech.com/hackers-jailbreak-t2-security-chip-used-in-macs/

Security researchers claim that they have successfully jailbroken the T2 security chip used in MacBooks, iMacs, Mac Pro, and Mac mini. The jailbreak was made successful by utilizing two exploits that were previously created for iPhones.

T2 security chips are co-processors included in Macs and contain a Secure Enclave Processor which protects sensitive data and parts of the operating system including passwords, Touch ID authentication data, secure boot, and even storage encryption. The chip is also used for hardware video acceleration, especially for encrypted video streams such as 4K Netflix playback. iPhone exploits, which include checkm8 and blackbird, can be used to gain full control of the Macs, modify encrypted data, or access critical functions of the operating system without any restrictions. The flaw has been tested and verified to be working by many security researchers.