Wouldn't it be a brilliant idea if all credit and debit card issuers in the UK, gave their customers the opportunity to switch OFF the ability for using their credit card abroad, as default, and only allow it to be used abroad if the customer rings up or does something via the online banking portal to inform them it is going to be used abroad and allow it to be unblocked for only specific periods of time (i.e., one day/week/month/etc).
In my time, I've had two credit cards cloned, and both times cloned by somebody using it for overseas transactions, one in the USA, and the other in Latvia. It's not to say that nobody in the UK doesn't do it, but it helps to reduce the risk.