I installed Windows 10 via Boot Camp couple of months ago and it worked normally. Today I tried to boot into Windows, but a password form pops up (firmware protection form). Booting into macOS without holding option key works OK.
I have tried entering the passwords for an admin account, my Apple ID, and iCloud, as well as booting into local and network recovery modes. Nothing worked.
I don't have "Find My Mac" installed or a recovery partition.
Where I can find this password or bypass it?