“Yahoo says it believes hackers stole data from more than one billion user accounts in August 2013, in what is thought to be the largest data breach at an email provider.

The Sunnyvale, California, company was also home to what’s now most likely the second largest hack in history, one that exposed 500 million Yahoo accounts . The company disclosed that breach in September. Yahoo said it hasn’t identified the intrusion associated with this theft.

Yahoo says the information stolen may include names, email addresses, phone numbers, birthdates and security questions and answers. The company says it believes bank-account information and payment-card data were not affected.

The new hack revelation raises fresh questions about Verizon’s $4.8 billion proposed acquisition of Yahoo, and whether the big mobile carrier will seek to modify or abandon its bid. If the hacks cause a user backlash against Yahoo, the company’s services wouldn’t be as valuable to Verizon.”

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Author: Associated Press