Just 74 Accounts, But Real Risk: Hotmail Fresh B4_Jx Leak

In March 2026, HEROIC analysts found a small stealer log named "Hotmail Fresh B4_Jx" uploaded to a Telegram channel by a user distributing malware harvested credentials under that tag. The file contained just 74 records, each pairing a login URL, an email address, and a plaintext password tied to Hotmail accounts.

A Close Look at This 74 Record Leak

74 records is a small file, but size does not determine danger. Each entry here is a complete, working set of login details, meaning the 74 people affected face the exact same risk as anyone in a much larger breach: a criminal with their email, password, and the URL where it was used.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• Associated Login URLs

Why This Matters

Even with only 74 accounts involved, anyone in this file who reused their Hotmail password on another site is exposed to credential stuffing and account takeover. Small logs like this one are often overlooked, but the consequences for the individuals inside them are just as real.

How Stealer Logs Work

Stealer logs are produced by malware that infects a device and copies saved browser credentials before sending them to an attacker. Small batches like this "B4_Jx" tagged file are often early releases from a single infection wave, shared quickly on Telegram before a larger log is compiled.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, including small stealer logs like this one. Run a free scan to see if your Hotmail account is one of the 74 exposed here.