I don't think that is what he is saying. What he said was "Please note that using the unit's serial numbers by itself as a means of validation is generally not sufficient..." In other words, a serial number database would be fairly useless. A serial number can be copied. What you need is the addition of the paper trail, as he noted (purchase invoice, etc.), from Opensat/DTInnovation to the authorized distributor (either Rick's or AZBox Canada) and then to their dealers (and to the purchaser would be even more ideal).