Analysts Flag Piece Private 10 Combolist Leak of 671 Login Credentials

HEROIC analysts identified a combolist named "Piece Private 10," uploaded by a Telegram user on 25 June 2025. The file contains 671 records combining email addresses and plaintext passwords, each linked to the URL of the site the credentials were used on.

Why This Is Dangerous

Every entry in this file is a working set of login details for a real account. An attacker doesn't need to guess a password or break any encryption, they simply need to try the email and password pair against the listed site. If it still works, they're in.

What Was Exposed in the Piece Private 10 Leak

• Email addresses
• Plaintext passwords
• URLs for the matching login pages

Why This Matters: One Password Can Unlock Several Accounts

The real danger of a leak like this isn't limited to the one site listed in the file. Most people reuse passwords across email, banking, and shopping accounts, so a credential stolen from one service can be tested against many others through credential stuffing. That single point of failure is how a modest combolist leads to account takeover, identity theft, and financial fraud well beyond the original site.

How Combolists Like Piece Private 10 Are Assembled

A combolist is a curated file of username-and-password combinations, usually pulled together from older breaches, phishing kits, or infected devices, then organized and labeled for resale. The numbering in a name like "Piece Private 10" typically signals it's part of a series the seller releases in batches. Because the passwords are stored in plain text, buyers can start testing them immediately with no additional cracking required.

Check If You Are Affected

Small, private combolists like this one rarely make headlines, but they are just as capable of exposing your accounts. HEROIC's free breach scanner searches over 400 billion leaked records so you can check whether your email address appears in the Piece Private 10 leak or any other breach on file.