Your Password May Be Exposed in the Valenciga Leak of 4,577 Records

What HEROIC Analysts Found

HEROIC analysts identified a stealer log titled "VALENCIGA - BUY TRAFFIC LIVE LOGS 258" uploaded to a Telegram channel on June 10, 2025. The file contains 4,577 records taken from malware-infected devices, each pairing an email address with a plaintext password and the URL of the account it opens. The phrase "buy traffic" in the file name suggests the seller markets these credentials as a way to drive paid traffic or ad fraud using compromised accounts, on top of the direct account takeover risk.

Why the Valenciga Leak Is Dangerous

Because the passwords here are plaintext, an attacker does not need to crack or guess anything before logging in. The seller's own description, calling these "live logs," signals the credentials are believed to still be active, which makes them more valuable to buyers and more dangerous to the people they belong to.

What Was Exposed in the Valenciga Stealer Log

• 4,577 compromised records
• Email addresses tied to infected devices
• Plaintext passwords stored without encryption
• URLs identifying the exact login page for each credential

Why This Matters if Your Password Shows Up Here

If your email and password are part of this batch and you have ever reused that password elsewhere, an attacker can try it against your email, banking, or social accounts through credential stuffing. Because the seller is actively marketing these as "live" logs, the window between exposure and exploitation can be very short.

How Stealer Logs Like Valenciga Are Built

Infostealer malware infects a device, quietly harvests saved browser passwords and login URLs, and sends the results to whoever controls the malware. Sellers then package logs like this 258-record batch and advertise them on Telegram under names meant to attract buyers looking for fresh, working credentials rather than old, already-changed passwords.

Check If Your Email Was in the Valenciga Leak

The safest move is to check rather than assume you are not affected. HEROIC's free breach scanner searches more than 400 billion leaked records, including stealer logs like this one, and tells you instantly if your email address turns up. If it does, change that password immediately and stop reusing it anywhere else.