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The first data breach occurred on Yahoo servers in August 2013 [1] and affected all three billion user accounts. [2] [3] Yahoo announced the breach on December 14, 2016. [4] Marissa Mayer, who was CEO of Yahoo at the time of the breach, testified before Congress in 2017 that Yahoo had been unable to determine who perpetrated the 2013 breach. [5]
It is estimated that the average cost of a data breach will be over $150 million by 2020, with the global annual cost forecast to be $2.1 trillion. [2] [3] As a result of data breaches, it is estimated that in first half of 2018 alone, about 4.5 billion records were exposed. [4]
The attack specifically targeted Yahoo Voice, formerly known as Associated Content, which Yahoo had acquired in May 2010 for $100 million (£64.5 million). Using SQL injection techniques, the hackers were able to extract the data from Yahoo's servers and subsequently post the compromised information publicly online. [1] [2] [3] [4]
December 14, 2016: A separate data breach, occurring earlier around August 2013 is reported. This breach affected over 1 billion user accounts and is again considered the largest discovered in the history of the Internet. [152] The data taken is similar to the data breached earlier except that it had very weak password encryption.
2017 Equifax data breach – In 2017, Equifax Inc. announced that a cyber-security breach occurred between May and mid July of that year. Cyber criminals had accessed approximately 145.5 million U.S. Equifax consumers' personal data, including their full names, Social Security numbers , credit card information, birth dates , addresses , and, in ...
It also includes $30 million in attorney fees and $2.5 million in legal costs, a slight reduction from the original fee request. Lawyers File New Yahoo Data Breach Settlement, Boosting Its Value ...
The threat of data breach or revealing information obtained in a data breach can be used for extortion. [16] Consumers may suffer various forms of tangible or intangible harm from the theft of their personal data, or not notice any harm. [91] A significant portion of those affected by a data breach become victims of identity theft. [82]
2012 Yahoo Voices hack; 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; 2024 cyberattack on Kadokawa and ...