Yahoo revealed Tuesday that a massive cyberattack it suffered in 2013 was much more widespread than it previously said, according to regulatory filings.
The web portal now says all 3 billion Yahoo accounts were compromised in the breach. The company initially said only 1 billion had been hit when it first disclosed the hack last December.
The compromised information includes usernames, passwords, and some telephone numbers and dates of birth, the paper reported.
The original disclosure nearly derailed Yahoo's then-pending blockbuster sale to Verizon earlier this year. The carrier ultimately managed to knock $350 million off the agreed-upon price because of the unforeseen hack. Read more...
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