The box.ua Combolist Quietly Leaked 11,466 Emails on Telegram

In June 2026, HEROIC analysts identified a combolist file uploaded to a Telegram channel under the label "box.ua." The file contained 11,466 records pairing email addresses with plaintext passwords, along with the URLs of the accounts those credentials belonged to. Why This Is Dangerous A combolist is a ready-to-use list of login credentials, often assembled from multiple smaller leaks and stealer logs into one file. Because the passwords are stored in plaintext and matched to specific site URLs, criminals can plug this file directly into automated tools that test each email and password pair against dozens of other websites within minutes. What Was Exposed Email addresses Plaintext passwords URLs of the accounts tied to each credential pair Why This Matters Combolists are the raw fuel behind credential stuffing attacks. If any of the 11,466 people in this file reused a password on another account, an attacker can use automated bots to try that same email and password combination on banking sites, email providers, and social media until one works. From there, account takeover and identity theft follow quickly. How Combolist Breaches Work Combolists are compiled by combining credentials from older breaches, stealer logs, and phishing campaigns into a single searchable file, usually organized as email and password pairs. Criminals trade these files on Telegram channels and dark web marketplaces, where other attackers buy them cheaply and run them through automated login tools aimed at popular websites and services. Check If You Are Affected HEROIC's free breach scanner checks your email address against more than 400 billion breached records, including combolists like this one. Run a free scan now to see if your information was exposed and needs to be changed.