Yes, that would be possible, but that would require effort on the counterfeiter's part. Any additional hardware in the drive controller is going to reduce the c

Yes, that would be possible, but that would require effort on the counterfeiter's part. Any additional hardware in the drive controller is going to reduce the counterfeiter's profits. So why would they bother? H2testw, which f3's algorithm is based upon, is more than a decade old at this point with the same RNG generator and no one has made such a drive controller to trick it.