The OTTOMANCLOUD Dump: 1,546 Stolen Login Credentials Hit the Dark Web

In June 2023, a threat actor uploaded 88 pieces of a stealer log file tied to OTTOMANCLOUD to Telegram, exposing 1,546 credential records in a single drop. The batch -- labeled 88PCS FREE -- was shared publicly, making it accessible to any Telegram user with the right channel access. The exposed data included plaintext passwords, email addresses, and URLs, giving anyone who downloaded the file everything needed to attempt account takeovers without any additional tools or technical knowlege.

Why This Is Dangerous

Even at 1,546 records, this breach carries serious risk for every individual in the file. Stealer log data is uniquely dangerous because it originates from malware running on the victim's own device -- not from a distant server breach. The credentials were captured in real time, paired acurately, and verified by the malware itself before being packaged. The FREE designation in the file name indicates this portion was released as a sample or promotional dump, often used by threat actors to advertise larger, paid datasets. The full OTTOMANCLOUD stealer log collection may contain significantly more records.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

Plaintext passwords combined with matched email addresses are the highest-value credential format for attackers. There is no barrier between this data and account access -- no hashes to crack, no guessing required. With the URLs also included, attackers know exactly which services each victim used, allowing them to prioritize the most valuable targets such as banking portals, corporate VPNs, and email providers. Even a relatively small file like this one can cause disproportionate damage when its records belong to high-value accounts or users who reuse passwords.

How Stealer Log Breaches Work

The OTTOMANCLOUD dump follows the standard stealer log pattern. Malware -- typically distributed through phishing, trojanized software, or malicious browser extentions -- infects a victim's device and begins silently harvesting credentials. It captures passwords saved in browsers, credentials entered into login forms, and session cookies that can bypass two-factor authentication. The harvested data is packaged into a structured log file, organized by batch, and uploaded to Telegram where it is shared for free or sold in larger volumes. The 88PCS batch label indicates this was a curated selection from a larger archive.

Check If You Are Affected

HEROIC's free scanner checks your email against more than 400 billion exposed records -- including the OTTOMANCLOUD dump and thousands of other stealer logs and data breach files. Enter your email to see immediately whether your credentials have appeared anywhere on the dark web. The scan takes seconds, costs nothing, and requires no registration. Run it now before someone else gets there first.