Inside a 12,978-Login USA Stealer Log Leaked on Telegram

Picture a single text file sitting in a Telegram channel in May 2026, holding 12,978 lines of stolen login data. Each line pairs an email address with a plaintext password and the exact web address where that password was typed in. The file is labeled simply "usa," a generic name for a bulk stealer log tied to United States based victims. There is no single company behind this leak. It is a collection of credentials pulled from many different infected computers and dumped together for anyone in the channel to download and use.

Why a Bulk Stealer Log Like This Is Dangerous

Unlike a breach at one company, a stealer log this size spans dozens or hundreds of different websites and services all at once. That makes it especially useful to criminals, because a single file can hand them working logins for email accounts, online stores, banking portals, and social media, all pulled from real people's browsers. Since the passwords are stored in plaintext, there is no encryption to break through. Anyone who downloads the file can start testing logins immediately.

What Was Exposed

• Email addresses tied to 12,978 individual accounts
• Plaintext passwords for each account, fully readable with no encryption
• The specific login page URL where each credential pair was captured

Why This Matters

A leak of this size is a goldmine for credential stuffing, where attackers take stolen email and password pairs and try them across banking sites, email providers, and shopping accounts to see which ones still work. If you reused a password across multiple sites, one leaked login can lead to account takeover, financial fraud, or identity theft on accounts that have nothing to do with the original site where the password was captured.

How This Stealer Log Was Built

Logs like this one come from infostealer malware, malicious software that quietly infects a computer through a fake download, pirated software, or a malicious attachment. Once running, it copies every saved password, autofill entry, and login session stored in the victim's browser and sends it back to the attacker. Operators then bundle logins from many infected machines into a single file, sorted by country or theme, and share or sell them on Telegram channels and dark web forums. A file simply labeled "usa" is exactly this kind of bundle.

Check If You Are Affected

With almost 13,000 credentials in this single file, there is a real chance your email address is one of them. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked and stolen records, including stealer logs like this one. Run a free scan now to find out if your login needs to change.