The Secret Service estimates that in 2008 some $8.5 billion was lost as a result of skimming and phishing attacks. Skimming is a global challenge that impacts all types of card-reading machines, including ATMs and POS devices. Pay-at-the-pump terminals are targets because they can easily be entered with universal gas keys. In comparison, ATMs are required to have unique keys and codes for service and maintenance checks. Some pumps, he says, lack key protection all together.”]
Source: https://www.cuinfosecurity.com/blogs/pay-at-the-pump-skimming-growing-threat-p-614