In the Swipe-and-Sign authentication option for card-present transactions, attacks by POS malware like TinyPOS have been discovered.
Some techniques used by these campaigns in the process of Data Exfiltration were identified as follows:
A number of associated Indicators of Compromise are given below.
Indicators of Compromise
IP(s) / Hostname(s)
Malware Hash (MD5/SHA1/SH256)