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The 2013 data breach occurred on Yahoo servers in August 2013 and affected all three billion user accounts. The 2014 breach affected over 500 million user accounts. Both breaches are considered the largest ever discovered and included names, email addresses, phone numbers, birth dates, and security questions—both encrypted and unencrypted.
The Breach. The Yahoo Voices breach occurred on July 12, 2012, when a hacking group calling themselves "D33DS Company" used a union-based SQL injection attack to gain unauthorized access to Yahoo's servers. [5] The attackers were able to extract and publish unencrypted account details, including emails and passwords, for approximately 450,000 ...
December 2016: Yahoo! data breaches reported and affected more than 1 billion users. The data leakage includes user names, email addresses, telephone numbers, encrypted or unencrypted security questions and answers, dates of birth, and hashed passwords
This is a list of reports about data breaches, using data compiled from various sources, including press reports, government news releases, and mainstream news articles. The list includes those involving the theft or compromise of 30,000 or more records, although many smaller breaches occur continually.
Yahoo! Inc. (1995–2017, 2021–present) Yahoo (/ ˈjɑːhuː /, styled yahoo! in its logo) [4][5] is an American web services provider. It is headquartered in Sunnyvale, California, and operated by the namesake company Yahoo! Inc., which is 90% owned by investment funds managed by Apollo Global Management and 10% by Verizon.
2014 Russian hacker password theft. 2015 TalkTalk data breach. 2016 Indian bank data breach. 2018 Google data breach. 2018 SingHealth data breach. 2021 Microsoft Exchange Server data breach. 2022 Optus data breach. 2023 Bangladesh Government website data breach. 2023 MOVEit data breach.
The first announced breach, reported in September 2016, had occurred sometime in late 2014, and affected over 500 million Yahoo! user accounts. [43] A separate data breach, occurring earlier around August 2013, was reported in December 2016, and affected over 1 billion user accounts. [44]
A data breach, also known as data leakage, is "the unauthorized exposure, disclosure, or loss of personal information ". [1] Attackers have a variety of motives, from financial gain to political activism, political repression, and espionage. There are several technical root causes of data breaches, including accidental or intentional disclosure ...