https://phys.org/news/2018-08-ukrainians-hacking-companies.html

"Since at least 2015, FIN7 members engaged in a highly sophisticated malware campaign targeting more than 100 US companies, predominantly in the restaurant, gaming, and hospitality industries," it said.

"FIN7 hacked into thousands of computer systems and stole millions of customer credit and debit card numbers, which the group used or sold for profit," it said.