Small List, Real Risk: New Valid Bigdatacomboo Telegram Leak

HEROIC analysts spotted a combolist titled "New Valid Bigdatacomboo uploaded by a Telegram User" after it appeared on June 2, 2025. The file is small compared to many breaches HEROIC tracks, containing 920 records, but each one pairs an email address with a plaintext password and a linked URL, meaning the credentials inside are fully usable the moment someone opens the file.

Why This Small Bigdatacomboo Leak Still Matters

A file with 920 records may look minor next to breaches involving millions, but size has little to do with risk. Every entry in this list includes a working login pair in plaintext, so an attacker does not need to crack, guess, or decode anything. If even one of those 920 accounts belongs to you, the exposure is just as real as it would be in a much larger leak.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to the accounts

Why This Matters

Small combolists like this one still feed the same credential stuffing pipelines that larger breaches do. Attackers plug the email, password, and URL combinations into automated tools that test the login against banking, email, and social media sites. If you reused that password anywhere else, the exposure can spread from one account to many, opening the door to account takeover, identity theft, and financial fraud.

How Combolists Work

A combolist bundles email-and-password pairs, often gathered from older leaks or infected devices, into a single file that criminals can load directly into automated login tools. This one was uploaded to Telegram, a common distribution point for smaller, freshly assembled lists like this. Because the passwords are already in plaintext, no extra cracking step stands between the data and someone trying to use it.

Check If You Are Affected

Even a small combolist can include your information. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including this Bigdatacomboo list and every other stealer log, combolist, and database dump HEROIC has indexed, so you can find out quickly and change any password that is still at risk.