Card skimmers are on the rise. Here's how you can spot them.

The annual cost of card skimming to consumers and banks is estimated to be around $1 billion, according to the FBI. This fraudulent activity involves stealing credit and debit card information through devices installed on point-of-sale systems, ATMs, and gas pumps.

Debit card skimming grew by 96% last year, according to Fair, Isaac and Company, a financial data analytics firm1. The FBI estimates that card skimming costs consumers and banks around $1 billion each year1.