Breach and Leak Report: Concise information for Yahoo data breaches helps victims avoid further privacy risk and file claims, including accidents reports and settlements for particular cases.
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By Jackson White | Back to Breach List |
A. 2012 Data Security Intrusions: From January through April 2012, at least two different malicious actors accessed Yahoo's internal systems. However, the available evidence does not reveal that Yahoo has taken out user credentials, email accounts, or the contents of emails from its systems.
B. 2013 Data Breach: In August 2013, malicious actors were able to gain access to Yahoo's user database and took records for all existing Yahoo accounts-approximately three billion accounts worldwide. The data stolen included the names, email addresses, telephone numbers, birth dates, passwords, and security questions and answers of Yahoo account holders. As a result, the actors may have also gained access to the contents of breached Yahoo accounts and, thus, any private information contained within users' emails, calendars, and contacts.
C. 2014 Data Breach: In November 2014, malicious actors were able to gain access to Yahoo's user database and take records of approximately 500 million user accounts worldwide. The data stolen included the names, email addresses, telephone numbers, birth dates, passwords, and security questions and answers of Yahoo account holders. As a result, the actors may have gained access to the contents of breached Yahoo accounts and any private information, which contained users' emails, calendars, and contacts.
D. 2015 and 2016 Data Breach: From 2015 to September 2016, malicious actors could use cookies instead of a password to gain access to approximately 32 million Yahoo email accounts.