Betfair loses millions of customers' credit card details then covers it up | Mail Online - 0 views
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More than 3.1 million account names with encrypted security questions, 2.9 million usernames, and nearly 90,000 account usernames with bank account details were stolen.
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Betfair said it did not inform its registered customers of the attack
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The betting group said it had contacted the Australian Federal Police and German authorities over the attack