One Upload. 66,957 Logins. The KURZL0GS_UP Leak Hit Telegram.

66,957 Fresh Logins Exposed in the KURZL0GS_UP Upload

HEROIC analysts found a stealer log file, labeled "2 JULY - KURZL0GS_UP 21K-PCS FRESH Part 3," uploaded to a Telegram channel on 24 Jul 2026. The file held 66,957 records taken straight from infected devices, including email addresses, plaintext passwords, and the URLs of the accounts they open.

Why This Is Dangerous

The word "fresh" in the file name is the key detail here. This is not old, recycled data circulating for years. It is a recently harvested batch of live credentials, meaning the usernames and passwords inside are far more likely to still work right now. An attacker who downloads this file can start testing logins immediately without needing to crack a single password.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the sites the credentials were used on

Why This Matters

With 66,957 fresh, plaintext credentials in one file, this is a large enough batch for automated tools to run through quickly, testing each email and password pair across banking sites, email providers, and social media. Anyone who reused a password from one of these accounts elsewhere is exposed to credential stuffing, account takeover, and the identity theft and financial fraud that often follow.

How Stealer Log Leaks Like This Happen

Stealer logs come from info stealing malware that infects a device through a cracked download, a malicious attachment, or a fake update prompt. Once running, it quietly harvests saved browser passwords, autofill entries, and session data, then packages it into a file. Sellers and distributors often label their files with a brand name and freshness claim, like "KURZL0GS_UP" and "FRESH," to market the data as more valuable to buyers on Telegram and dark web forums.

Check If You Are Affected

If you want to know whether your email or passwords are part of this leak or any other, HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records. It takes less than a minute to check your exposure and get clear steps to secure your accounts.