``Its wireless device
uses a form of encryption to ensure security, said Joe Asher, managing director of Cantor G&W.
Asher would not disclose details about the encryption method, and said a biometric system that reads a permitted user`s fingerprint could also be used if regulators prefer.
The wireless devices would be linked to a server that could verify the gambler is the person who checked out one of the devices at a casino.``