If You Reuse Passwords, TXT_ALIENS’ 29M Record Leak Should Worry You

In May 2026, HEROIC analysts identified a large combolist named "TXT_ALIENS - 1634" circulating on a Telegram channel. Unlike most of the small, targeted files HEROIC tracks from this same source, this one is substantial: it contains 29,037,863 records, each pairing an email address with a plaintext password and the URL of the login page it unlocks. This is one of the largest Telegram-uploaded combolists HEROIC has documented from this channel. Why This Is Dangerous: With more than 29 million plaintext email and password pairs in one file, this combolist gives anyone who downloads it a massive, ready-to-use list of working logins. Each record includes the exact URL where the credential works, removing any guesswork for an attacker looking to break into an account. What Was Exposed: - Email addresses - Plaintext passwords - URLs for the associated login pages Why This Matters: A list of this scale makes it statistically likely that a meaningful number of the 29 million people included have reused their password somewhere else. If you reuse passwords across your email, banking, or shopping accounts, a file like this is exactly what attackers use to run automated credential stuffing attacks, testing stolen logins against dozens of major platforms at once. How Combolists Work: A combolist is a merged file of email or username and password combinations pulled together from multiple sources, past breaches, stealer logs, and earlier leaks, then packaged as one large list. The scale of a combolist like TXT_ALIENS - 1634 comes from combining many smaller sources into one file, which is why even old, previously circulated credentials can end up bundled alongside newer ones and redistributed on Telegram and dark web forums. Check If You Are Affected: With 29 million records in a single file, the odds that your information is included are worth taking seriously. HEROIC's free breach scanner checks your email against a database of more than 400 billion breached records, including combolists like TXT_ALIENS - 1634, so you can find out in seconds and change your password before it is used against you.