Every Yahoo account that existed - all 3 billion - was compromised in 2013 hack
It’s official. If you had a Yahoo account in 2013, it was compromised.
Dan Goodin - Oct 3, 2017 10:00 pm UTC
Yahoo said a major security breach in 2013 compromised all three billion accounts the company maintained, a three-fold increase over the estimate it disclosed previously The revelation, contained in an updated page about the 2013 hack, is the result of new information and the forensic analysis of an unnamed security consultant. Previously, Yahoo officials said about one billion accounts were compromised. With Yahoo maintaining roughly three billion accounts at the time, the 2013 hack would be among the biggest ever reported.
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https://arstechnica....d-in-2013-hack/
