The security on a prepaid card is the same as used on other forms of plastic. You need to input your PIN to make larger purchases, for example. It’s worth noting that prepaid card purchases are not covered by Section 75 of the Consumer Credit Act so you may find it harder to get a refund if you are unhappy with any goods and services purchased. While prepaid card companies are also not necessarily covered by the Financial Services Compensation Scheme, the underlying funds are held by a bank or building society. If the prepaid card company goes bust, you may still get your money back.