Plaintext Passwords Among 681 Records Leaked in QuickMail.ml Breach

QuickMail.ml Stealer Log Exposes 681 Records

In June 2026, HEROIC analysts found a stealer log file uploaded to Telegram that exposed 681 records tied to quickmail.ml. The file surfaced on 10 June 2026 and contains email addresses, plaintext passwords, and the URLs those credentials were used on, all lifted straight from infected devices.

Why This Stealer Log Is Dangerous

The most alarming detail in this dump is that every password is stored in plaintext, meaning it is readable exactly as the person typed it, with no scrambling or protection at all. Paired with the matching email address and login URL, an attacker has everything needed to sign into an account immediately, no cracking, guessing, or extra work required.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs associated with the logins

Why This Matters

Because these are plaintext passwords tied to specific login pages, they are prime material for credential stuffing and account takeover. Anyone among the 681 affected who reused this password elsewhere, on email, banking, or shopping sites, risks having those accounts accessed the same way this one was.

How Stealer Logs Work

Stealer logs are produced by infostealer malware that infects a device, often through a malicious download or phishing link, and silently harvests everything saved in the browser: usernames, passwords, cookies, and autofill entries. That stolen information is then compiled into a log file and traded or sold through Telegram channels and dark web forums, which is exactly how this quickmail.ml data came to light.

Check If You Are Affected

To find out if your information appears in this leak or any other, run HEROIC's free breach scanner. It checks your email address against a database of more than 400 billion leaked records, including stealer logs like this one, so you know right away if your credentials need to be changed.