The HESOYAM CLOUD Breach Gave Hackers 51,386 Plaintext Passwords to Exploit

HEROIC analysts confirmed a verified stealer log breach linked to HESOYAM CLOUD CloudHesoyam, surfaced in February 2026 after an anonymous Telegram user shared the file publicly. The leak exposes 51,386 records containing email addresses, plaintext passwords, and the specific service URLs those credentials belong to. This is not hashed or encrypted data. These are usable, ready-to-deploy login credentials in the hands of anyone who downloaded the file.

What Attackers Can Do With This Data Right Now

The HESOYAM CLOUD breach stands out because the passwords were never protected. Plaintext storage means no decryption, no cracking, and no delay. An attacker who gets hold of this file can begin attempting logins within seconds. With 51,386 email and password pairs, plus the URLs showing exactly which platforms those credentials access, they have a highly targeted attack list.

This type of data is particularly valuable on criminal marketplaces. Stealer log files are regularly re-packaged and sold long after the initial upload. Even if the original Telegram post has been taken down, the data has almost certainley been copied and redistributed many times by now.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (service endpoints and login pages)

Why This Matters: From One Leak to Full Account Takeover

Credential stuffing is the most immediate risk. Attackers take the exposed email and password combinations and test them automatically across hundreds of websites, looking for matches. If you use the same password across multiple accounts, one exposed credential can unlock your email, your bank, your social media, and your work tools all at once.

Beyond account takeover, stolen email credentials open the door to identity theft. An attacker with access to your inbox can reset passwords on other accounts, intercept two-factor authentication codes, and build a complete picture of your digital life. Financial fraud often follows. The HESOYAM CLOUD breach exposed enough data to enable these attacks at scale.

How Stealer Log Breaches Work

Stealer malware is installed on a device without the user knowing, often through a malicious download, a fake software update, or a phishing link. Once running, it silently collects every saved password in the browser, records keystrokes, and logs the URLs of every site the user visits and authenticates to.

The resulting log file contains a complete snapshot of the user's digital credentials at the time of infection. Attackers who operate these malware campaigns then compile logs from thousands of infected machines and upload the combined files to Telegram channels or dark web forums. The HESOYAM CLOUD file was one such upload, and the 51,386 records inside it represent real people whose devices were compromised at some point before the file was assembled.

Check If You Are Affected by the HESOYAM CLOUD Breach

HEROIC's free breach scanner checks your email address against a database of over 400 billion exposed records, including stealer logs like the HESOYAM CLOUD file. You do not need an account to search, and the results are immediate.

If your data appears in this breach or any other known leak, you will recieve a notification instantly so you can change your passwords and secure your accounts before any damage is done. Run your free search now.