New: Mail Access 138K Hits Mix Valid 100 uploaded by a Telegram User

On September 8, 2025, a file labeled "Mail Access 138K Hits Mix Valid 100" appeared on a Telegram channel HEROIC analysts monitor for stolen credential activity. Inside were 84,965 exposed records, each pairing an email address with a plaintext password and the login URL it unlocks. The file's name suggests it was drawn from a much larger pool of roughly 138,000 stolen logins, narrowed down to the batch confirmed to still work.

Why the Timing of This Leak Matters

A batch this size, verified and posted within days of collection, is at its most dangerous in the days and weeks right after it surfaces. Passwords are still current, accounts have not yet been changed, and the credentials have not yet been picked over by earlier buyers. The longer this file circulates unnoticed, the more chances attackers have to test these logins before victims ever find out.

What Was Exposed

• Email addresses
• Plaintext passwords
• Login URLs tied to each credential pair

Why This Matters

With nearly 85,000 confirmed working logins in one file, this is a ready-made resource for credential stuffing, automated attempts to reuse these email and password pairs across banking, email, and shopping sites. Anyone caught in this leak faces a real risk of account takeover, and depending on which services are affected, identity theft or financial fraud can follow.

How a 138K Batch Gets Narrowed to 85,000 Hits

Stealer malware infects devices and harvests every saved browser credential it can find, often producing raw logs in the hundreds of thousands. Sellers then run automated checking tools against those raw credentials, discarding anything that no longer logs in and keeping only the confirmed hits. That is exactly what happened here, an original pool of about 138,000 records was checked down to 84,965 working logins before being posted for sale or trade.

Check If You're Affected

Because verified batches like this are most dangerous immediately after they surface, waiting to check your exposure only helps attackers. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, so you can find out right now whether your email and password are part of this leak.