Simple text files containing thousands of email addresses used by spammers or for credential stuffing attacks.
In 2014, unsealed court documents revealed that in 2008, the US government threatened Yahoo with a fine of $250,000 per day if it refused to comply with broad demands for user data under the NSA's PRISM program . Context of "Yahoo.txt" Files 250k yahoo.txt
Files named yahoo.txt are frequently found in data leak repositories. These often contain: Simple text files containing thousands of email addresses
If you have found a file with this name, it likely contains sensitive personal information from a historical breach. It is recommended to check if your email was compromised and update your security settings, including enabling multi-factor authentication . These often contain: If you have found a
In June 2018, Yahoo's UK arm was fined £250,000 by the Information Commissioner's Office (ICO) following a massive 2014 data breach that affected over 500 million users worldwide. The ICO cited "systemic failures" in protecting the personal data of approximately 515,000 UK account holders.