Some Macs feature a security T2 chip, a custom silicon for Mac. As Apple said “By redesigning and integrating several controllers found in other Mac computers – such as the System Management Controller, image signal processor, audio controller, and SSD controller – the T2 chip delivers new capabilities to your Mac.” In short, T2 chip secures some features like Touch ID or add a secure boot feature. FaceTime HD camera also benefits from T2 chip – it provides enhanced tone mapping, improved exposure control and face-detection-based autoexposure and auto white balance – all thanks to T2’s image signal processor.
Apple recently released a special version of macOS Mojave 10.14.5, which is designed for 2018 and 2019 15.4-inch MacBooks Pro. According to Apple, the new software addresses a firmware issue impacting Macs with a T2 chip:
The MacBook Pro Supplemental Update addresses a firmware issue affecting 15-inch MacBook Pro computers with T2 Security Chip, and is recommended for all users. For detailed information about the security content of this update, please visit: https://support.apple.com/en-gb/HT201222
Here is a list of all Macs, not only mentioned MacBooks Pro, which feature a T2 chip:
- iMac Pro
- Macs mini introduced in 2018
- MacBooks Air introduced in 2018
- MacBooks Pro introduced in 2018 or later