The number of cyber attacks against ATM involving insert skimmers is increasing. Cyber security expert Brian Krebs wrote about recent attacks using infrared devices. Insert Skimmers are wafer-thin fraud devices designed to fit invisibly inside the ATM card slot. The infrared is a short-range communication technology, every day we use it when we change TV program with a TV remote control. The insert skimmers are optimized to preserve battery, according to Krebs the insert skimmer also uses an embedded battery that is turned on only when someone inserts a card.”]
Source: https://securityaffairs.co/wordpress/61058/cyber-crime/infrared-insert-skimmers-attacks.html