Analysts Flag Vuln_Plesk: 360 Login Credentials Leaked

In July 2026, HEROIC analysts identified a combolist named "Vuln_Plesk" uploaded to a Telegram channel. The file contains 360 records, each pairing an email or username with a plaintext password and a linked URL. Why This Is Dangerous Every credential in this file is plaintext, so it can be used the moment someone downloads it, with no cracking involved. The "Vuln" naming suggests these credentials were gathered by targeting a known weakness, and files like this are often aimed at accounts tied to specific software or services rather than pulled from a broad, general breach. What Was Exposed in the Vuln_Plesk File Email addresses or usernames Plaintext passwords URLs linked to each login Why This Matters Even a modest file of 360 credentials can be damaging when the accounts involved control access to a website, server, or admin panel rather than just a personal inbox. If any of these logins provide administrative access to a service, a successful login could let an attacker do far more than read someone's email, potentially reaching whatever that account is connected to. How Targeted Combolists Like This Get Assembled Unlike a broad combolist scraped from many unrelated sources, a file labeled around a specific keyword like "Vuln_Plesk" typically points to credentials collected through a more focused method, such as scanning for accounts tied to a particular platform or exploiting a known flaw. This kind of targeted collection makes the resulting list smaller but often more valuable to the buyer. Check If You Are Affected If you manage any online accounts, especially ones tied to website or server administration, it's worth checking whether your credentials show up in a leak like this one. HEROIC's free breach scanner searches more than 400 billion leaked records and tells you instantly if your email address has been exposed.