Cloning HID Prox ID _Work Bldg card

[Pilgrimsmaster]

Whilst you wait for Wednesday to rock around…

Is your issue similar to what is discussed in this thread?

Weird EM UID issue

I have a bunch of readers here, and most of them read my EM implants’ UIDs correctly in hex or decimal. But 3 of them report another, totally different UID for the same transponders. I dumped both implants with my Proxmark3, just to make sure those readers didn’t report some alternate data or data format. But no: those UIDs don’t correspond to anything known, be it in hex or decimal. Yet all 3 readers report the same value. I have no idea where they get this value from. Any idea?