Yahoo! data breaches - choose a jigsaw puzzle to solve

The Internet service company Yahoo! reported two major data breaches of user account data to hackers during the second half of 2016 . The first announced breach, reported in September 2016 , had occurred sometime in late 2014 , and affected over 500 million Yahoo! user accounts. A separate data breach , occurring earlier around August 2013, was reported in December 2016 . Initially believed to have affected over 1 billion user accounts, Yahoo! later affirmed in October 2017 that all 3 billion of its user accounts were impacted. Both breaches are considered the largest discovered in the history of the Internet . Specific details of material taken include names, email addresses, telephone numbers, encrypted or unencrypted security questions and answers, dates of birth , and hashed passwords. Further, Yahoo!