HEROIC Found 103,234 Records in the 526k usa pvt base Leak

HEROIC analysts came across this file on Telegram, where a user had shared it under the label "526k usa pvt base." Despite the name, the verified file contains 103,234 records dated 14-Dec-2022, including email addresses, plaintext passwords, and the URLs those credentials belong to.

Why This 526k usa pvt base Leak Is Dangerous

This wasn't posted on a hidden forum requiring special access, it was shared openly in a Telegram channel, the same kind of casual distribution point criminals use every day to trade stolen logins. Every record includes a plaintext password sitting next to the exact URL it unlocks, so anyone who downloads the file has an immediate, working set of credentials with no cracking or guessing required.

What Was Exposed

• Email addresses
• Plaintext passwords
• The login URLs tied to each set of credentials

Why This Matters

With 103,234 records in circulation, the immediate risk is account takeover on the exact services listed in the file. The danger compounds for anyone who has reused a password since this data was captured back in December 2022: attackers routinely run exposed email and password combinations against other popular sites, a tactic called credential stuffing, hoping an old, reused password still works.

How Stealer Logs Work

Stealer logs come from malware that infects a device, often through a fake download, pirated software, or a malicious attachment, and then quietly harvests whatever the browser has saved: passwords, autofill data, and the web addresses tied to each login. Files like this one are compiled from that stolen data and shared or sold through channels such as Telegram, exactly where HEROIC analysts found it.

Check If You Are Affected

Data like this can sit on Telegram for years before anyone acts on it, which is exactly why checking now matters. HEROIC's free breach scanner checks your email address against more than 400 billion leaked and dark web records, so you can find out if you're exposed and change any old passwords before someone else does.