Those are often two different issues. There are several ways in which to contain RFID signals. Some companies build Faraday cages, which are typically metal mesh enclosures that block radio waves.

We may receive a commission on purchases made from links. Remember that scene in the 2002 film "Signs" when Joaquin Phoenix wore an aluminum foil cap to defend against extraterrestrial mind control?

RFID-blocking wallets promise peace of mind for contactless card users, but their usefulness depends on how worried you are about one specific fraud risk.

Classic, bulky wallets are becoming a thing of the past as most transactions go cashless. However, one segment promises long-term relevance: RFID-blocking wallets. As RFID systems proliferate, so do ...