Tech: Every single Yahoo account was compromised by hackers (VZ)

Previously, Yahoo estimated that only 1 billion accounts were affected by the hack.

Yahoo's infamous hack — already one of the worst in history — is even worse than previously thought.

All three billion of the user accounts it had in 2013 were affected by the security breach, the company, now owned by Verizon, said on Tuesday. Previously, the company estimated the hack affected one billion accounts.

The hacked user information included phone numbers, birth dates, and security questions. Yahoo states that the hacked information did not include passwords in clear text, payment card data, or bank account information.

Yahoo said it is sending out email notifications to the remaining user accounts that did not receive a notification in 2016 when the hack was first revealed by Yahoo.

Business Insider also published some steps for Yahoo users to

This story is developing. Check back here for updates.

Previously, Yahoo estimated that only 1 billion accounts were affected by the hack. Read Full Story