Hundreds of UEFI products from 10 vendors are susceptible to compromise due to a critical firmware supply-chain issue known as PKfail, which allows attackers to bypass Secure Boot and install malware.
If you restore the BIOS to the default settings using the button on the left-most side in the BIOS, and then setup an Administrator password in the Security tab, you’d be able to verify yourself by using a Ventoy flash drive if you want.
Also I feel is important to mention that your BIOS password for that one model of XPS you have can be reset by generating a master key, so I really recommend turning on an option that I cannot remember the name of from the tip of my tongue, but it disables the “master password”, with the disadvantage that if you forget your BIOS password you’d have to replace the motherboard. If I find the name I’ll link it right here.
Edit1:
The option is called Master Password Lockout.
Edit2:
Is worth noting also that resetting the BIOS to default settings and erasing your secure boot keys might render your system unbootable if you use Windows BitLocker.
If you restore the BIOS to the default settings using the button on the left-most side in the BIOS, and then setup an Administrator password in the Security tab, you’d be able to verify yourself by using a Ventoy flash drive if you want.
Also I feel is important to mention that your BIOS password for that one model of XPS you have can be reset by generating a master key, so I really recommend turning on an option that I cannot remember the name of from the tip of my tongue, but it disables the “master password”, with the disadvantage that if you forget your BIOS password you’d have to replace the motherboard. If I find the name I’ll link it right here.
Edit1: The option is called Master Password Lockout.
Edit2: Is worth noting also that resetting the BIOS to default settings and erasing your secure boot keys might render your system unbootable if you use Windows BitLocker.