Yahoo Data Breach

The Yahoo data breach occurred between 2013 and 2014, when hackers gained unauthorized access to Yahoo's servers and stole personal information from about 3 billion user accounts. This included names, email addresses, phone numbers, dates of birth, and security questions. The breach was only revealed publicly in 2016, causing concerns about identity theft and privacy. It was one of the largest data breaches in history, highlighting vulnerabilities in Yahoo's security systems and prompting widespread industry awareness about the importance of protecting online user data.