Japan Mail Access Stealer Log Leaks 991 Passwords: Check Now

In May 2026, a stealer log identified as "Japan Mail Access" appeared on Telegram, uploaded by a user distributing credential dumps pulled from malware-infected computers. The file contains 991 records, each pairing an email address with a plaintext password and the web address (URL) where that login works. Unlike a traditional corporate data breach, this collection was not stolen from a single company's servers. It was harvested one infected device at a time by information-stealing malware, then bundled and shared for anyone to download.

Why the Japan Mail Access Leak Puts You at Risk

Because the passwords in this log are stored in plaintext, no cracking or decryption is required to use them. Anyone who gets a copy of the file can immediately log in to the accounts listed, no technical skill needed. The included URLs make this even easier, pointing directly to the login pages where each set of credentials is valid.

What Was Exposed in the Japan Mail Access Log

• Email addresses
• Plaintext passwords
• Login URLs tied to each account

Why This Stealer Log Matters for You

If your email and password appear in this file, the risk goes well beyond that one inbox. Password reuse means the same login often unlocks banking apps, social media, and shopping accounts too, a technique known as credential stuffing. Attackers run leaked credential lists like this one against hundreds of other sites automatically, looking for matches. From there, account takeover, identity theft, and financial fraud are all realistic next steps.

How This Stealer Log Was Built

Stealer logs like this one come from infostealer malware, malicious software that quietly infects a device, often through a fake download, cracked software, or a malicious email attachment. Once installed, it copies saved browser passwords, autofill data, and session details straight off the victim's machine and sends them back to whoever controls the malware. Those results get organized into a log file and sold or shared on platforms like Telegram, exactly how this 991-record file made its way online.

Check If Your Email Was in This Leak

You don't have to guess whether your information is part of this or any other leak. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like this one, and tells you instantly if you have been exposed. Run a free check now and take back control of your accounts before someone else does.