Months After the Leak, 1,126 Japan Mail Access Records Still Exposed

It has been several months since a stealer log called 1127 JAPAN MAIL ACCESS first appeared on Telegram back on November 6, 2025, and the 1,126 records inside it are still sitting out there, fully readable, for anyone who wants them. Small leaks like this one often get overlooked because they lack the eye catching size of a million record dump, but the risk to the people in that file hasn't gone away.

Why This Is Dangerous

Time is exactly what makes this leak dangerous. The longer a set of plaintext passwords sits unaddressed, the more chances criminals have had to test, resell, or bundle it with other data. A file that occured months ago has almost certainly already been copied dozens of times over by now, spreading well beyond the original Telegram post.

What Was Exposed

• Email addresses tied to mail accounts
• Plaintext passwords stored with no protection
• URLs identifying the exact login pages involved
• 1,126 total records in the leaked file

Why This Matters

A small record count doesn't mean small consequences for the people involved. If any of these 1,126 accounts still use the same password today, months after the leak, they remain just as vulnerable as they were on day one. Passwords don't expire on their own, so unless someone actively changes theirs, the exposure is permenant until they do.

How Stealer Logs Work

Stealer logs like this one start with malware quietly running on a victim's device, scooping up saved browser passwords and session data before sending it back to whoever controls the malware. Files often sit in private channels for a wile before getting leaked more broadly, which is likely part of why this one is only being flagged clearly now, months after it first surfaced.

Check If You Are Affected

Even leaks from months ago are worth checking, since old passwords often get reused on new accounts. HEROIC's free breach scanner covers more than 400 billion records collected from breaches old and new, so you can find out today whether this leak, or any other, ever touched your information.