Page 32 - Byte 2022
P. 32
T H E B I G G E S T
D A T A B R E A C H
E V E R !
In December 2014, Yahoo's security team
discovered that Russian hackers had
obtained its "crown jewels"—the usernames,
email addresses, phone numbers, birthdates,
passwords and security questions/answers
for at least 500 million Yahoo accounts.
Within days of the discovery, according to the
SEC, "members of Yahoo's senior
management and legal teams received
various internal reports from Yahoo's Chief
Information Security Officer (CISO) stating
that the theft of hundreds of millions of
Yahoo users’ personal data had occurred."
Yahoo's internal security team thereafter was
aware that the same hackers were
continuously targeting Yahoo's user database
throughout 2015 and early 2016, and also
received reports that Yahoo user credentials
were for sale on the dark web.
25
