If I understand the question correctly, let me say that I don't believe there is incremental risk being added with mobility. In fact, in many cases the mobile device can add authentication or other factors to the equation that can actually reduce risk. One of the attributes of a mobile device is that by definition it knows where you are and that therefore, if a payment is being made in another jurisdiction and the device is not in that jurisdiction, there is an indicator to the issuer that this may in fact be a fraudulent type of card.
There are also other authentication methods, using fingerprint scanners and biometrics, that are being added into the equation. These can all be added to the system over time as additional elements that help reduce these sorts of risks.