Xavier_Ulp Leak: 294,515 Logins Put Your Other Accounts at Risk

HEROIC analysts examined a stealer log titled "Xavier_Ulp - 345000 Xavier_Group," uploaded to Telegram on 27 June 2026. The seller's label claimed 345,000 records, but HEROIC's verification confirmed 294,515 genuine entries, each pairing an email address with a plaintext password and the URL of the login page it unlocks. The gap between the advertised figure and the verified count is common with stealer logs sold on Telegram, but 294,515 real, exposed credential pairs is still a large-scale leak on its own.

Why the Xavier_Ulp Leak Puts More Than One Account at Risk

The real danger in a leak like this rarely stops at the one login inside the file. Most people reuse the same password across several accounts, so a single exposed email and password pair from the 294,515 verified records can act as a key that also opens that person's email, banking, or shopping accounts elsewhere. One leaked credential can chain into several compromised accounts if the password was ever reused.

What Was Exposed in the Xavier_Ulp Leak

• Email addresses
• Plaintext passwords
• URLs of the associated login pages

Why This Matters Beyond This One File

Credential pairs like these are exactly what powers credential stuffing, where attackers automatically try each of the 294,515 leaked logins against other popular websites. If a password was reused, the attacker doesn't stop at the original account. They move on to whatever else that password unlocks, which is how a single stealer log leads to account takeover, identity theft, and financial fraud across accounts that were never part of the original leak.

How a Stealer Log Like Xavier_Ulp Gets Assembled

Stealer logs are compiled by malware that infects a device and quietly harvests saved browser credentials and autofill data. Sellers on Telegram often inflate the record count when labeling these files, in this case advertising 345,000 records for a file that HEROIC verified at 294,515. Once compiled, the log is distributed or sold to whoever is willing to pay for working credentials.

Check If Your Email Was in the Xavier_Ulp Leak

Since one leaked password can put several of your accounts at risk, it's worth checking your exposure directly. HEROIC's free breach scanner checks your email address against a database of more than 400 billion verified leaked records, including stealer logs like Xavier_Ulp, and tells you instantly if you were exposed. Run a free scan now and change any reused passwords before someone else uses them.