The WATERCLOUD_INFO Leak Exposed Your Passwords to Hackers

The WATERCLOUD_INFO Stealer Log: 32,084 Records Exposed

On June 18, 2025, HEROIC analysts spotted a data dump labeled "WATERCLOUD_INFO" uploaded to a Telegram channel, packaged across 408 separate files. Once combined, the files contained 32,084 records made up of email addresses, plaintext passwords, and the URLs of the login pages those credentials belonged to. The data reflects information pulled directly off infected devices, with activity concentrated among users in the United States.

Why This Is Dangerous

Picture someone opening this file and finding your email address sitting right next to your actual password, in plain readable text, along with the exact website it unlocks. There is no guessing, no cracking, no extra step. Whoever has this file can simply copy your credentials into the matching login page and be in your account within seconds, and they can do this for tens of thousands of people at once using automated tools.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the login pages and services tied to each account

Why This Matters

Because so many people reuse the same password across several accounts, a single leaked password rarely stays contained to one site. Attackers take credentials like these and test them against email providers, banking apps, and shopping accounts in a tactic called credential stuffing. Where it works, the result can be account takeover, unauthorized charges, or a stolen identity built from whatever personal details are stored in the compromised account.

How Stealer Log Leaks Work

Stealer logs like WATERCLOUD_INFO come from infostealer malware, software that quietly infects a device and copies out saved passwords, autofill data, and browsing history without the owner noticing. Once collected, the malware operator packages the results into files like this one and distributes them through Telegram channels or dark web marketplaces, often for free as a way to build a following or for a small fee to other criminals. Because the credentials are captured straight from the source, an infected browser, they tend to be accurate at the time of theft, which is exactly what makes these logs so valuable to attackers.

Check If You Are Affected

If any of your accounts were active around June 2025, it is worth checking whether your credentials appear in the WATERCLOUD_INFO log. HEROIC's free breach scanner searches your email against a database of more than 400 billion leaked records, including stealer logs like this one, and shows you immediately if you have been exposed. Run a free scan and update any passwords it flags.