Apple uses EFI passwords and the T2 Security Chip.
If you must reset a password, ensure you document the new password. If you are a technician, always ask for proof of ownership before attempting hardware-level password removal, as bypassing these locks can be considered tampering with stolen property in some jurisdictions. efi firmware passcode remove
: You must provide valid proof of purchase (the original receipt) and personal identification. Apple uses EFI passwords and the T2 Security Chip
If you cannot use official channels, the technical solutions vary by year: Older Macs (2006–2010) efi firmware passcode remove
This method is most effective for and older laptops.
Most desktop motherboards have a specific jumper header to clear passwords.