Files_17.10_18.21_12 Combolist Leaked Exactly 5,397,036 Logins

Buried inside a Telegram upload dated 10-Oct-2024 was a plain text file named Files_17.10_18.21_12, and inside that file sat 5,397,036 separate email and password combinations. No fancy branding, no explanation, just millions of logins lined up row after row for anyone to download.

Why This Is Dangerous

A combolist this size is dangerous precisely because of how boring it looks. It is not tied to one company's name, so most people would never asume their information was inside it. Yet the sheer volume means the file likely draws from dozens of older breaches stitched into one master list, seperate incidents combined into a single weapon.

What Was Exposed

• Millions of email addresses used as usernames
• Matching passwords stored in plaintext with no encryption at all
• URLs indicating where each credential pair was originally captured or is meant to be tested

Why This Matters

Combolists like this one are the raw fuel for credential stuffing attacks, where criminals run automated software that tries every single pair against hundreds of popular websites at once. With over 5.3 million entries, even a tiny success rate still hands attackers thousands of working logins.

How This Combolist Works

Unlike a fresh stealer log pulled from live malware, a combolist is more like a scrapbook. Criminals gather credentials leaked in past breaches, dumps, and stealer logs, then merge, sort, and deduplicate them into one clean file organized by date or source, in this case labeled 17.10_18.21_12. The result is a tidy, reusable weapon that gets recirculated for years after the original leaks happened.

Check If You Are Affected

With millions of records in a single file, checking manually is not realistic. HEROIC's free scanner covers more than 400 billion leaked records pulled from breaches and combolists just like this one, so you can imediately see if your email and password combination is sitting in a file somewhere waiting to be tested.