Telegram Threat Actor Exposes SunCloudNew 1327 Data: 14,958 Records at Risk

In November 2025, a Telegram threat actor published a stealer log file containing 14,958 records from what they labeled "SunCloudNew 1327 - 400 LogsFile." The dataset included plaintext passwords, email adresses, and API endpoint URLs harvested from compromised machines across the United States. This is the kind of breach that goes unnoticed by most victims while attackers quietly use the credentials for months.

Why This Is Dangerous

Nearly 15,000 records of live credentials in a single upload is not a small incident. Each record represents someone's actual login information, captured directly from their device by malware and handed to a threat actor who then chose to publish it on Telegram. The data is immediately usable with no additional work required by the attacker.

Plaintext passwords are the worst possible outcome in a breach because they eliminate every layer of protection downstream. Even if a service hashes passwords on their end, it doesn't matter here. The attacker already has the raw value the user typed in, which they can try against any other site that person uses.

The API host URLs in this dataset are also worth paying attention to. They point to backend systems and services that may beleive they are protected by their own access controls, but those controls mean nothing once a valid credential is in the hands of someone who should not have it.

What Was Exposed

• Email addresses
• Plaintext passwords
• API host URLs and service endpoints
• Browser-stored login credentials
• Endpoint and device connection data
• Session tokens and authentication cookies (likely)
• Application-specific credentials

Why This Matters

Stealer log data distributed through Telegram reaches a large audience fast. Unlike dark web forums that require membership and trust, Telegram channels can be joined by anyone. That means the 14,958 records in this log may have been downloaded and acted on by dozens of different actors within hours of being posted.

For the people in this dataset, the risk is not just one unauthorized login. It is a chain reaction. A compromised email account gives an attacker access to password resets for banking, shopping, and work accounts. One entry in this log can lead to complete account takeover across an entire digital identity.

How Stealer Log Works

Stealer malware typically arrives through a phishing email, a cracked software download, or a malicious browser extension. The user often has no idea anything is wrong. The malware installs itself quietly and begins harvesting saved credentials from browsers, desktop apps, and clipboard history.

Once it has collected enough data, the malware packages everything into a structured log file and transmits it to the attacker's infrastructure. Many modern stealers are designed to send logs directly to a Telegram bot, which is why this distribution method has become so common. The attacker then sorts through the logs and decides whether to use them personally or post them publicly.

The 400 in the file name "SunCloudNew 1327 - 400 LogsFile" likely refers to the number of individual log files bundled together, each representing a seperate compromised endpoint. This structure is typical of stealer log collections assembled from multiple victims over time before being uploaded in bulk.

Check If You Were Affected

If you think your information may have been captured in the SunCloudNew 1327 stealer log or any similar breach, use HEROIC's free breach checker at heroic.com. HEROIC continuously monitors stealer log collections and breach datasets so you can find out quickly whether your credentials have been exposed and what to do about it.