HEROIC Analysts Discover Xavier_Log #170 Leak of 4,278 Records

In May 2026, a new stealer log surfaced on a Telegram channel under the name Xavier_Log - 170 Xavier_Group free uploaded by a Telegram User, and it wasn't small. The file contained 4,278 individual records, each one a snapshot of a real person's login session, quietly harvested by malware running on their device.

Why This Is Dangerous

Stealer logs are dangerous because they don't just list a username and password, they capture the whole picture. The malware behind this leak grabbed emails, plaintext passwords, and the exact URLs people were logging into at the time. That means whoever downloaded this file from Telegram can walk right up to someone's email or a shopping account and log in like they own it, because for all intents and purposes, they now do. There's no guessing involved wich makes this kind of leak especially nasty compared to a simple password list.

What Was Exposed

• 4,278 total records
• Email Addresses
• Plaintext Password
• URLs tied to the accounts

Why This Matters

People tend to think of a breach as something that happens to a big company, but stealer logs are personal. This file didn't come from a hacked corporate server, it came from infected computers, meaning the passwords inside are recent and, in alot of cases, still valid. If any of those 4,278 people reused a password across other sites, this one log could unlock several accounts at once.

How Stealer Log Works

A stealer log is built by malware that infects a device, often through a cracked download, a fake update, or a malicious attachment, and then quietly copies saved browser passwords, cookies, and autofill data before sending it all back to whoever controls the malware. The attacker never has to guess a password because the malware handed it to them directly, already paired with the matching email and website URL.

Check If You Are Affected

If you're wondering whether your information showed up in this or any other leak, HEROIC's free breach scanner searches across more than 400 billion compromised records to give you an imediate answer. It only takes a minute to check, and it's a smart habit to run every so often, not just after headlines like this one.