90,061 Logins Exposed in the WATERCLOUD 5 TG ArhontCorp File

A file posted to Telegram under the name WATERCLOUD 5 TG ArhontCorp caught the attention of HEROIC analysts in August 2026, containing 90,061 records of email addresses, plaintext passwords, and the web addresses they unlock. The data appears to have been pulled directly from infected devices rather than taken from any single company's servers. Anyone whose browser or apps saved login details on a compromised machine could be in this file, and the only way to know for certain is to scan your email.

What Attackers Gain From the WATERCLOUD 5 File

Because the passwords in this file are stored in plain, readable text, anyone who downloads it can use the credentials immediately, with no cracking or guesswork required. Paired with the matching URLs, an attacker can log straight into the exact account each login belongs to, whether that is email, shopping, or work tools. This removes the usual delay between a leak and real account access, which is why fast action matters here.

The Data Inside This Stealer Log

• Email Addresses: let attackers identify who you are and target you directly with phishing or fake password reset messages.
• Plaintext Password: readable and usable immediately, letting an attacker log in without needing to crack or guess anything.
• URLs: show exactly which site or service each login belongs to, speeding up account takeover attempts.

The Real World Fallout for Victims

When working logins are this easy to use, account takeover can happen within hours of a file like this circulating. Attackers who get into an email account often use it to reset passwords on other services, turning one leak into several. If any of these accounts touch banking, shopping, or work systems, the risk extends to financial fraud and identity theft as well.

How Stealer Logs Like This One Get Built

Stealer logs come from malware that quietly runs on a victim's device, copying saved usernames, passwords, and the sites they belong to before sending everything back to whoever controls the malware. Unlike data taken from a company's own servers, a file like this can include logins for dozens of unrelated services pulled from one infected computer. That is why a single stealer log can expose such a wide mix of accounts at once.

Is Your Email Inside the WATERCLOUD 5 TG ArhontCorp File?

The fastest way to find out is to scan your email against this file and the rest of HEROIC's records. If a device you own was ever infected, treat it as compromised first: run a malware scan and reset it before changing any passwords, since typing new ones on an infected machine just hands them over again. Once the device is clean, update those passwords, and keep in mind this applies to personal and work email accounts alike.