The Mail Acces 826X Leak: 824 Passwords Exposed. Yours Might Be One.

In August 2025, HEROIC analysts identified a file circulating on Telegram under the label "Mail Acces 826X Mix Valid 100." Dated 26-Aug-2025, the file contains 824 records advertised as working email account logins, including email addresses, plaintext passwords, and the URLs of the mail login pages they unlock. Why This Is Dangerous: The words "Mix Valid" in the file's own name signal that whoever compiled it tested these credentials and confirmed they still work. That means the 824 records in this file are not old or already-changed passwords, they are logins an attacker can use right now to open someone's email inbox. What Was Exposed in the Mail Acces 826X File: The file contains email addresses, plaintext passwords, and the URLs of the mail account login pages the credentials belong to. Why This Matters: Email inboxes are often the master key to a person's entire online life. Anyone with access to an email account can use "forgot password" links to reset logins for banking, shopping, and social media accounts tied to that address. If any of the 824 exposed passwords are reused elsewhere, attackers can also run credential stuffing attacks against other sites, leading to account takeover, financial fraud, or identity theft. How a "Mix Valid" Combo List Like This Gets Made: Lists labeled "valid" are typically produced by running large batches of leaked email and password pairs through automated checker tools that attempt to log into webmail providers. Combinations that successfully log in are kept and repackaged into a smaller, higher-value file, exactly like the 824 records found here, while failed attempts are discarded. These curated lists are then sold or traded on Telegram because every entry is confirmed to work. Check If You Are Affected: If you use a webmail account, you can check for free whether your address appears in this breach or any other using HEROIC's breach scanner. It searches a database of more than 400 billion leaked records to show you if your information has been exposed, so you can change any reused passwords before someone else logs in first.