I'm not sure about other countries but Australian Banks have been releasing cards with RFID Chips in them (for what reason is beyond me since around the same time there's been payway apps which swap the bank card for a phone). Also about the same time I have been seeing ads for Scan Blocker. The page explains how it works.
- Scan Blocker's antenna detects a nearby sniffer
- Scan Blocker draws energy from the sniffer to power up
- Scan Blocker instantly creates an E-Field, a surround electronic field making all cards invisible to the sniffer
- Scan Blocker repels and scrambles the sniffers' signals
- Once a sniffer is out of range Scan Blocker de-powers
Before these chips were put in to my understanding someone needed the bank card itself to skim it and steal information from it a person would either need to steal the card itself or hook up a card skimmer to an ATM or Eftpos Machine. The ads for Scan Blocker and the like imply now someone can just walk past you with this "sniffer" to get all your card details.
But I find it hard to believe that multiple banks would force1 a technology that would require third-party devices to make them secure. So I am wondering if there is any truth to what these Scan Blockers say? Have banks cards just been made more vulnerable thanks to these RFID chips?
1: I say forced because when I went to change banks once I asked for a card without a chip but I was told it wasn't an option