I am sure that is an interest many of us have on here.
I know @pilgrimsmaster mentioned Bosnian Bill the other day (who has now retired). @DeviantOllam sometimes turns up here.
But I agree that the Defcon folks are probably interested in RFID implants particularly ones suitable for cloning other chips, and they might also like the Vivokey Apex as well.
Oh, and I assume a Clash reference rather than the World service call sign.