The ARCEUSULP Combo Surfaced Weeks Ago. 427,213 Records Are Public.

In early July 2026, a Telegram user uploaded a combolist labeled "ARCEUSULP 92 465679," and HEROIC analysts flagged the file within weeks of it surfacing. It contains 427,213 records, each combining an email address, a plaintext password, and the URL of the login page it unlocks. The file has already been circulating in Telegram channels for weeks, meaning any credentials inside have had time to reach a wide audience of potential buyers. Why This Is Dangerous: With more than 427,000 plaintext email and password pairs, this file gives anyone who downloads it a large, ready-to-use list of working logins. Each record includes the exact URL of the account it belongs to, so an attacker can move directly from opening the file to attempting a login. What Was Exposed: - Email addresses - Plaintext passwords - URLs for the associated login pages Why This Matters: A file of this size, already in circulation for weeks, means the window for people to protect themselves is closing. If any of the 427,213 affected people reused their password elsewhere, attackers can use automated tools to test those credentials against banking, shopping, and email platforms through credential stuffing. How Combolists Work: A combolist is a compiled file of email or username and password combinations gathered from multiple past breaches, stealer logs, and earlier leaks, then merged into a single list for distribution. The longer a file like this circulates on Telegram channels and dark web forums, the more copies exist and the harder it becomes to contain, which is why prompt action after discovery matters. Check If You Are Affected: This file has already been public for weeks, so checking your exposure now is more urgent than with a fresh leak. HEROIC's free breach scanner searches a database of more than 400 billion breached records, including combolists like ARCEUSULP 92 465679, so you can find out in seconds whether you are affected.