Stealer Log 101: FreeOLDCloud Leak Exposes 10,250 Records

In February 2024, HEROIC analysts came across a stealer log named "FreeOLDCloud" being circulated on a Telegram channel. The dataset held 10,250 records taken from infected devices, including email addresses, plaintext passwords, and the login URLs tied to each account. This entry is a textbook example of what security researchers call a stealer log, one of the fastest growing categories of data leak today.

Why This Is Dangerous

Unlike a hacked database where passwords might be encrypted, stealer logs capture credentials exactly as the victim typed them. There is nothing to decode. An attacker opens the file and instantly has a working email, password, and site match ready to use.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Once a stealer log like this circulates on Telegram, it becomes fuel for credential stuffing attacks, where automated tools try each email and password combo across dozens of popular websites. That process can quickly lead to account takeover, and for victims who reuse passwords across banking or shopping sites, it opens the door to identitiy theft and financial fraud.

What Is a Stealer Log, Exactly

A stealer log is the output of a specific type of malware known as an information stealer. Rather than locking files for ransom or spying on keystrokes over time, this malware runs once, grabs everything saved in a victim's browser, mail client, and messaging apps, and exports it into a single text file. That file gets named, packaged, and shared, sometimes labeled with a name like FreeOLDCloud, and often sold or given away in bulk on Telegram alongside hundreds of other similar logs.

How This Type of Breach Works

The infection usually begins with a victim downloading cracked software, a fake update, or an email attachment disguised as a document. Once opened, the malware runs silently in the background for only a few seconds, just long enough to copy the password vault and any autofill data, before deleting itself to avoid detection. The theft is quick, quiet, and often goes completely unnoticed by the victim.

Check If You Are Affected

You do not have to guess whether your information ended up in a log like FreeOLDCloud. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, giving you a fast, clear answer so you can update any exposed passwords right away.