The Xavier_Log Stealer Leak Could Unlock 16,710 Emails and Passwords

On July 20, 2026, HEROIC analysts identified a stealer log named "Xavier_Log - 4400 Xavier_Group Premium.part2" uploaded to a Telegram channel, exposing 16,710 records of email addresses, plaintext passwords, and browser URLs. The file name suggests it is one part of a larger series being distributed in pieces, a common tactic used to make stolen data sets harder to track and take down. Why This Is Dangerous: With 16,710 credential sets stored in plaintext, this file requires no technical skill to exploit. An attacker can open it and immediately begin testing logins against email providers, banks, and other online accounts. What Was Exposed: The leak includes email addresses, plaintext passwords, and the URLs those passwords unlock, giving attackers a direct link between each stolen credential and the account it opens. Why This Matters: Being labeled "Premium" and split into parts suggests this data is being marketed to other criminals as a higher-value product. If any of these 16,710 people reused a password elsewhere, this single file could be the key to their email account, banking login, or social media profile. How a Stealer Log Like This Works: Stealer logs come from malware installed on a victim's device, typically through pirated downloads, cracked software, or malicious attachments. The malware quietly collects saved browser passwords, autofill information, and session data, then sends it back to the attacker. Larger logs like this one are often broken into parts and labeled "Premium" before being sold or traded across Telegram channels. Check If You Are Affected: HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including stealer logs like this one. Run a scan to see if your credentials are part of this leak.