On July 4th, 2017 Avanti Markets discovered malware that exposed credit card transactions for any kiosks using old MSR credit card reader technology.
Avanti has been in the process of upgrading kiosks to the new Ingenico P2PE technology, but any that hadn't been upgraded were compromised. The upgrades have been accelerated significantly and are 70% complete, and should be finished by the end of this week.
So far it appears that names and credit/debit card numbers and expiration dates have been targeted. Avanti suggests customers notify their credit card companies and issue a security freeze on their cards.
For more information, please visit http://www.avantimarkets.com/notice-of-data-breach/.