In a survey that probably understates the matter, Brits are using the same password for multiple cards.

Finextra: Brits struggling with PINs – survey

Around a quarter of cardholders in the UK are putting their money at risk by using the same PIN number for all their credit and debit cards, according to research commissioned by price comparison Web site Moneysupermarket.

This is no surprise, and rather than being seen as a problem, should be seen as an opportunity by the industry to consider additional assistance for people. Biometrics spring to mind, such that cards can only be used by the owner.