AU: Major banks cancel credit cards after breach (update1)

Chris Zappone reports

A breach at a merchant has forced Commonwealth Bank, National Australia Bank, Westpac and its St George unit to cancel thousands of credit cards in the latest security issue to affect bank customers.

BusinessDay understands the matter is under police investigation, with CommBank issuing replacement cards from yesterday afternoon to about 8000 customers who might have been affected.

Read more in Brisbane Times

ABC News also reports on the breach:

All major banks have blocked, restricted or cancelled what totals thousands of credit cards in response to a potential security breach.

All four major banks and St George have confirmed to the ABC that some customers’ cards have been cancelled, blocked or restricted due to fears they had been compromised and would be open to fraud.

The Commonwealth Bank was the first to release information to the media, and says it detected the potential security breach through its continuous monitoring process.

CBA says a merchant EFTPOS terminal used by some of its customers was not secure, and there is a possibility customer information was ‘skimmed’.

Read more on ABC News.

Update 1: Darren Pauli reports that 8,000 cards were affected at the Commonwealth Bank.

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