Mastercard disclosed a data breach involving customer data from the company's Priceless Specials loyalty program.
The data was made available on the Internet, with customers' names, payment card numbers, email addresses, home addresses, phone numbers, gender, and dates of birth included in the leaked info.
The incident was limited to the Specials program and the only payment card information leaked was the numbers of payment cards.
After the data leak was discovered, Mastercard suspended the German Priceless Specials and took down its website, leaving up only a message that said this issue has no connection to MasterCard's payment network.
"id": "MAS05510423",
"linkid": "mastercard",
"type": "Data Leak",
"date": "08/2019",
"severity": "50",
"impact": "2",
"explanation": "Attack limited on finance or reputation"