Efi Firmware Passcode Unlock ((link)) [SAFE]

This is the most common "hard" bypass for Intel-based Macs (2011–2017).

For newer Intel-based Macs with the T2 chip, security is much tighter. Set a firmware password on your Mac - Apple Support efi firmware passcode unlock

The EFI (Extensible Firmware Interface) firmware password, often referred to as a BIOS password or UEFI password, is a hardware-level security feature. Unlike a standard user account password, the EFI password is stored on the computer's motherboard chip rather than on the hard drive. This is the most common "hard" bypass for