126k Valid.txt -

These lists are frequently shared on Telegram channels (like ALIEN TXTBASE) or hacking forums to facilitate account takeovers. Cybersecurity Risks & Prevention

In the world of data breaches, these files are often the result of or infostealer malware logs. Unlike raw data dumps, a "valid.txt" file suggests that a bad actor has already filtered the data to ensure the logins actually work, making them highly dangerous for the victims involved.

Use tools like Have I Been Pwned to see if your email appears in known "combo" leaks.

Typically structured as email:password or username:password .