The 10.000 .PL Mail Access Emails Leaked in February. It’s Now Public.

HEROIC analysts uncovered a stealer log titled 10.000 .PL Mail Access, dated 14-Feb-2026, that exposed 10,388 records. Although the underlying data was harvested back in February 2026, the file was only found circulating in a Telegram channel months later, in July 2026. It contains email addresses, plaintext passwords, and the URLs tied to .PL mail accounts.

Why the 10.000 .PL Mail Access Log Is Dangerous

The passwords in this log were never encrypted, and each one is already matched to the specific mail service it unlocks. That means the data has been sitting ready to use since February, and anyone who picked it up in the months since has had a direct path into these 10,388 mail accounts.

What Was Exposed in the 10.000 .PL Mail Access Dump

• Email addresses
• Plaintext passwords, stored with no hashing or encryption
• URLs showing the mail access point each set of credentials belongs to

Why This Matters

A months-long gap between when data like this is stolen and when it surfaces publicly gives attackers a head start. Anyone among the 10,388 people in this log who has not changed their email password since February is still exposed to account takeover, and from there, phishing campaigns or fraud carried out in their name.

How a Delayed Stealer Log Like This Surfaces

Infostealer malware harvests saved passwords and login pages from an infected device the moment it runs, but the resulting log does not always get shared right away. Sellers and Telegram channels often hold onto batches like this one before releasing or reselling them, which is why data stolen in February did not appear publicly until July.

Check If You Are Affected

If you use a .PL email address, it's worth checking now whether your account is among the 10,388 exposed here. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, so you can see what's out there and update your password before it's used against you.