Your Credentials May Sit in DUMP ULP Base34 3’s 17.6M Records

Your credentials may sit inside DUMP ULP 25.07.2026 Base34 3, a combolist file HEROIC analysts confirmed holds 17,627,477 plaintext email and password pairs, uploaded to Telegram and dated 16 August 2026. This is the third file in the current Base34 numbered series, joining earlier installments already logged by HEROIC. A direct way to check is to scan your email against the full database.

Why a file of this scale is dangerous

Seventeen million working login pairs give an attacker enough raw material to run automated credential stuffing against dozens of major platforms at once. Since every password sits in plaintext, there is nothing standing between an attacker loading this file and trying each pair against a real login form.

What was exposed

• Email addresses confirm which accounts are real and worth targeting.
• Plaintext passwords work immediately, without any cracking required.
• URLs tell an attacker exactly which login page each pair belongs to.

Why this matters

The sheer size of Base34 3 means the odds of any single password having been reused somewhere else rise sharply. A credential first captured for one throwaway account can still unlock a current email or banking login if the same password was ever carried over.

How a combolist like this gets built

Base34 3 is not one company's breach. It is assembled by pooling matching email and password pairs from earlier leaks and stealer log infections into a single indexed file, then dating and naming the compilation for distribution under the Base34 series label.

How do you check if you are part of the 17.6 million?

Run HEROIC's free tool to scan your email and check your address against Base34 3 and every other file in the database. If you get a match, reset that password immediately and look for the same password anywhere else you use it, personal accounts and work accounts alike.