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Yahoo: 2013 breach affected all 3 billion accounts

FILE - In this Dec. 15, 2016, file photo, the Yahoo logo appears on a smartphone in Frankfurt, Germany. In a regulatory filing on Monday, March 13, 2017, Yahoo named the top executives who will lead what’s left of the company after its business is sold to Verizon. Current CEO Marissa Mayer will stay at Yahoo until the $4.48 billion Verizon deal closes, expected by the end of June 2017. The filing did not say what will happen to her position after this. (AP Photo/Michael Probst, File)

Yahoo says that a 2013 breach affected all 3 billion of its accounts, tripling the number originally reported.

The company announced Tuesday that it's providing notice to additional user accounts affected by the August 2013 data theft.

The breach was previously disclosed by the company in December.

Following its acquisition by Verizon in June, Yahoo says, it obtained new intelligence while investigating the breach with help from outside forensic experts.

It says the stolen customer information did not include passwords in clear text, payment card data or bank account information.

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