The 39K Mix Combolist Really Contains 37,103 Exposed Accounts

HEROIC analysts reviewed a file called 39K Mix, tied to a leak dated May 25, 2026, found circulating on Telegram. The verified count is 37,103 records, slightly below the 39,000 implied by the name, each pairing an email address with a plaintext password and the URL it unlocks. Why This Leak Is Dangerous: A mix combolist pulls credentials from multiple sources rather than a single breach, meaning the 37,103 accounts inside likely belong to dozens of different services. That variety makes the file especially useful to attackers running broad credential stuffing attacks across many platforms at once. What Was Exposed: - Email addresses - Plaintext passwords - URLs identifying the specific service tied to each login Why This Matters: Because this is a mixed list rather than a single-site breach, anyone whose data appears here could be exposed across several unrelated accounts at the same time. Reused passwords are the biggest risk factor, since one leaked pair can unlock multiple services if the same password was used more than once. How a Mix Combolist Like This Works: Criminals compile mix combolists by merging credentials scraped from several older breaches, phishing campaigns, and malware logs into one large file, then distribute it as a general-purpose tool for testing logins across as many websites as possible. Check If You Are Affected: Search your email in HEROIC's free breach scanner, which checks against more than 400 billion leaked records, to see if you are part of the 39K Mix leak or any other breach, and update any reused passwords right away.