2 Billion Email Addresses Were Exposed, and We Indexed Them All in Have I Been Pwned

A massive data breach exposed 1.95 billion unique email addresses and 1.3 billion passwords, with 625 million passwords never seen before. The data, indexed by Have I Been Pwned, includes credential stuffing records from various sources, highlighting the risks of password reuse. The process of verifying and integrating this data was complex, involving technical challenges and privacy considerations. Users are advised to check their passwords using Pwned Passwords and adopt stronger security practices.