MasterCard warns of possible security breach, Visa also reportedly affected

MasterCard is investigating a possible breach of cardholder account data involving a U.S.-based payment processor, the company said Friday.

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MasterCard Deemed Unsafe? 'Anonymous' WikiLeaks Supporters Claim Privacy Breach | HuffPost Life

MasterCard Security Breach Claimed By WikiLeaks Supporters

Mastercard Reports Data Breach to German and Belgian DPAs

Mastercard disclosed a data breach to the German and Belgian Data Protection Authorities (DPA) involving customer data from the company's Priceless Specials loyalty program.

Mysterious Mastercard Data Breach Triggers Bank Warning As Customers Urged To 'Pay Close Attention' To Mo....

A US bank is warning customers of a security "intrusion" that may have compromised Mastercard account numbers and other financial data.

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