Inside the Trident_Cloud_3 Breach: How 2,822 Records Were Compromised

On November 5, 2025, a Telegram user uploaded a stealer log file labeled "Trident_Cloud_3" containing 2,822 records harvested from compromised endpoints. The data included plaintext passwords, email addresses, and URLs, all packaged together in a format that is immediately usable by anyone who downloads the file. Because it was posted to a public Telegram channel, there is no way to know how many copies have already been made and distributed elsewhere.

Why This Is Dangerous

Stealer logs with plaintext passwords represent one of the most direct threats a person can face from a data breach. There is no decryption needed, no hash cracking required, just a working set of credentials that can be plugged straight into an automated attack tool. With 2,822 records, this file gives a threat actor thousands of login combinations to try against any number of services.

What makes the Trident_Cloud_3 log particularly concerning is the inclusion of API host URLs alongside the standard credentials. This suggests the malware was capturing access to cloud-based services and developer tools, not just consumer email accounts. That kind of access can have much larger consequences if the affected endpoints belong to people working with cloud infrastructure or sensitive business systems.

Because this data was shared openly on Telegram, it is now accessable to anyone who thought to look for it. Credential stuffing tools can run through a list of 2,822 accounts across hundreds of services in a matter of hours, and the people in this dataset may not find out their accounts were compromised until the damage is already done.

What Was Exposed

• Email addresses
• Plaintext passwords
• Cloud service and application login URLs
• API host endpoint addresses
• Browser-captured credential pairs
• Endpoint session data and access tokens
• Service-specific login strings linked to cloud accounts

Why This Matters

The "Trident_Cloud_3" name follows the same pattern seen in other numbered stealer log series published on Telegram, which suggests this is not a one-time event but part of an ongoing operation. If this is the third batch, earlier uploads may still be circulating, and future uploads may already be in preparation. The consistent naming also makes it easier to track and attribute, but harder to contain once the data is out.

Even a relatively small dataset of 2,822 records can do real damage. Attackers do not need to compromise every account in a file to profit. Finding even a handful of high-value logins, like someone's email linked to a business account or a developer's cloud dashboard credentials, can make the entire operation worthwhile. Those affected need to act quickly to limit exposure before someone takes advantage of the leaked data.

How Stealer Log Works

Infostealer malware infects a device and immediately gets to work harvesting anything stored in browsers, applications, and cached files. The infection itself usually comes in through a deceptive channel, like a free software download that is not what it claims to be, a phishing email with a convincing attachment, or a fake browser extension with hidden functionality. The user typically does not notice anything wrong because the device continues to function normally while the malware runs in the background.

Once the malware has collected everything it can find, including passwords, cookies, saved form data, and API credentials, it packages the data into a structured log file and transmits it back to the attacker. This entire process occured silently and can be complete within a matter of minutes. The attacker then decides what to do with the logs, keeping anything high value and publishing or selling the rest.

The "cloud" focus in the Trident_Cloud_3 name points to a malware strain or campaign that was specifically designed to target credentials for cloud-based services, which are seperate from the more generic stealer logs that capture everything indiscriminately. Focused campaigns like this tend to yield more usable data for attackers looking to access business environments rather than just personal accounts.

Check If You Were Affected

If you beleive your credentials may have been captured in the Trident_Cloud_3 breach or any similar stealer log leak, use HEROIC's free breach checker at heroic.com. Enter your email adress to instantly see whether your data has appeared in known breach records, and find out what steps to take to protect your accounts before attackers get there first.