A U.K. firm has developed an on/off “switch” for RFID cards that could protect cardholders from being hacked. The cardholder activates the RFID transmission by squeezing the card between his thumb and ...

Researchers are working on an on/off switch for the next generation of credit cards. No, not to stop you from spending money you shouldn’t, but to help protect you from theft and fraud. Credit cards ...

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

Researchers at the University of Pittsburgh Swanson School of Engineering have made cards that have a type of on and off switch. The NFC or RFID circuits are disconnected when in your wallet, and ...