The Usmancloud Breach Gave Attackers Everything Needed to Hijack Cloud Accounts

HEROIC analysts identified this stealer log in October 2023, when an unidentified Telegram user uploaded a file containing 3,828 records connected to Usmancloud. The data was not just a list of email addresses. It contained plaintext passwords alongside API host details -- a combination that gives attackers direct access to cloud infrastructure without the need to guess, crack, or brute-force anything. What stood out to our team was the specificity. This was not a broad credential dump. It appeared to be targeted output from malware running on devices with access to cloud-based services.

Why This Is Dangerous

Most credential leaks require some additional effort from the attacker. Hashed passwords need cracking. Partial data needs to be matched with other sources. This breach required none of that. With plaintxt passwords and API endpoints in the same file, an attacker could attempt to authenticate directly to cloud services, management portals, or internal APIs within minutes of downloading the log. The free and open distribution on Telegram means hundreds of people could have accessed this data before it was ever flagged.

What Was Exposed

• Email addresses linked to Usmancloud services
• Plaintext passwords with no obfuscation
• API host URLs and internal endpoint addresses
• 3,828 total records from compromised devices
• Leak date: October 22, 2023

Why This Matters

Cloud infrastructure is an especially high-value target. Once an attacker has valid API credentials and endpoint addresses, they can interact with cloud storage, spin up compute resources, exfiltrate data, or pivot deeper into a network. The Usmancloud exposure represents the kind of access that ransomware groups and data brokers actively look for. Even if the original infected devices have since been cleaned up, any passwords not yet rotated remain useable. Organizations that relied on these credentials and have not reset them are still at risk today.

How Stealer Logs Work

Stealer malware is designed to run silently in the background of a compromised device. It scrapes saved passwords from browsers, intercepts form submissions, captures session tokens, and collects any credentals or configuration files it finds. The resulting log is a structured record of everything that device touched. For cloud workers and developers, that often means API keys, internal dashboards, and remote access tools. The log is then either sold privately or, as in this case, uploaded publicly to a Telegram channel for anyone to download.

Check If You Are Affected

If you have ever used credentials related to Usmancloud or any of the services in this dataset, your account may still be exposed. HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, one of the most comprehensive breach databases available anywhere. Search now to find out if your credentials have been compromised and take immediate steps to rotate any passwords that show up in results.