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Yahoo data breach

The Yahoo breach happened on July 11, 2012 and exposed 453,427 accounts. 2 kinds of data were exposed.

Overview

Site
yahoo.com
Breach date
July 11, 2012
Recorded on
December 4, 2013
Accounts exposed
453,427
Exposed data
Email addresses, Passwords
Risk score
64 out of 100

Risk based on the exposed data

This breach scores 64 out of 100. The score is driven mostly by Passwords, Email addresses.

The risk score is a guide to how dangerous a breach is, judged by the kinds of data exposed. The number of accounts is not included.

Breaches from the same period

  • War Inc. (2012-07-04, 1,020,136 accounts)
  • Dropbox (2012-07-01, 68,648,009 accounts)
  • Disqus (2012-07-01, 17,551,044 accounts)

What affected users should do

Create a new password →

This site organizes publicly available information about data breaches. Data as of October 6, 2017. Breach dates are as originally listed; when only the month is known, the date is recorded as the 1st.