The US Federal Bureau of Investigations (FBI) has warned retailers to harden their defences against cyber-heists. The agency expects PoS malware crime to continue to grow in the near term, despite mitigations. One copy of this type of malware was found on sale for only $6,000 (3,600) Cybersecurity consultants Group-IB back in September 2013 found booby-trapped bank card readers for half that price. We dont know yet whether those rigged registers were behind the breach of Targets (at least) 70 million data records.”]
Source: https://nakedsecurity.sophos.com/2014/01/27/fbi-warns-of-crimewave-hitting-cash-registers/