Well, we just saw Samsung launch its latest ubergizmo with tons of interesting features, like pause video playback at the blink of the eye. However, there is an important hardware feature of the Samsung Galaxy S4 to note here: finally a Near Field Communications (NFC) chip is embedded in the device (something that Apple left out of the iPhone 5), making it useful for mobile payments, building access control, and lots of other security uses. Issuers, payment services providers and trusted services managers have long been dreaming of mobile phones with NFC chips: not having to send plastic credit cards with EMV chips (or magstripes in the US) but being able to personalize the credit card right on the phone reduces card management costs, improves end user satisfaction. There is nothing new here. But here's where NFC finally in a mainstream mobile phone can revolutionize fraud management:
1) GPS verification. So if you use it to make a card present transaction by touching your phone NFC credit card to a PayPass or other proximity based credit card reader, the payment authorization platform can immediately know where you are, correlate it with the riskiness of the location (country) and use your location to build a risk score.
2) More factors and better capabilities for payment authentication. Instead or in addition to asking for a PIN code for transaction authentication, the payment processor can contact your registered phone and – based on risk – can ask for a PIN code signature, or secondary authentication like facial recognition or biometric retina vein recognition to authorize a higher value transaction.
3) Linking the NFC chip to an eWallet. This will be easier than ever before. If the NFC chip is initialized to be a credit card, the eWallet application can check for the presence of it and maybe even use it in a card present transaction.