Email Users Beware: The “8” Combolist Leaked 2,642 Login Credentials

What HEROIC Analysts Found in the "8" Combolist Leak

In October 2025, HEROIC analysts flagged a combolist file labeled simply "8," uploaded to a Telegram channel by an anonymous user. The file held 2,642 records combining email addresses with plaintext passwords and the URLs where those credentials were originally used, with accounts tied primarily to the United States.

Why This Is Dangerous

Because the passwords are stored as plaintext rather than hashed or encrypted, anyone with the file can read every credential instantly. Paired with the account's email address and original site URL, that is enough for an attacker to try logging in immediately, or to test the same password against other services the person might use.

What Was Exposed in the "8" Combolist

• Email addresses
• Plaintext passwords
• URLs of the associated websites

Why This Matters for the 2,642 Affected Accounts

Lists like this one are built specifically for credential stuffing: automated tools feed each email and password pair into login forms across banking, email, retail, and social media sites. Anyone among the 2,642 affected who reused a password elsewhere is at meaningful risk of account takeover, identity theft, or financial fraud.

How Combolists Like "8" Get Made

A combolist is assembled by combining credentials pulled from older breaches and stealer malware logs into a single file, then sharing or selling it, often through Telegram channels like the one this file surfaced in. A short, generic name and no described source is common for these files, and it does not make the data any less usable by an attacker.

Check If You Are Affected

If you want to know whether your email address appears in the "8" combolist or in any other breach, HEROIC's free breach scanner checks your details against more than 400 billion leaked records. Run a scan today to find out your exposure and take steps to protect your accounts.