CLOUDCOSMIC March 1 2023: 166 PCS Stealer Dump with 2,702 Credentials

A Telegram user uploaded the CLOUDCOSMIC 166 PCS stealer bundle on March 1, 2023, exposing 2,702 credential records harvested from 166 infected endpoints. The dump contains email addresses, URL or API host targets, and plaintext passwords, all packaged in the familiar CLOUDCOSMIC distribution format that operators use to mark each machine count and drop date.

Inside the CLOUDCOSMIC 166 PCS Bundle

The 166 PCS label refers to the number of compromised PCs in the bundle, while 01.03.2023 tags the day the logs were packaged. Across those 166 machines, operators pulled 2,702 individual credential records, averaging roughly sixteen working logins per victim. That is consistent with modern infostealers that vacuum every saved browser password in a single run.

Why Per-Machine Dumps Are Especially Dangerous

Unlike aggregated combolists, per-machine stealer dumps like CLOUDCOSMIC keep each victim's credentials grouped together. Buyers of these logs get a full profile of accounts tied to one person, which supercharges targeted attacks such as SIM swap fraud, business email compromise, and cryptocurrency theft. Attackers can pivot across a victim's digital life with a single purchase.

Specific Data Types at Risk

The CLOUDCOSMIC 166 PCS dump exposes email addresses, plaintext passwords, and URLs or API hosts. That combination is enough to attempt login on every site where the victim reused the password, and it also gives attackers a map of which services each victim uses. Email plus URL plus password is the most weaponizable format in the credential underground.

How to Protect Yourself if You Are Exposed

If your data appears in CLOUDCOSMIC, assume one of your devices was infected by an infostealer. Scan every machine you use with a reputable anti-malware tool, wipe saved browser passwords, and reset credentials starting with email and financial accounts. Enable multi-factor authentication, and switch high-value logins to passkeys where supported so leaked passwords cannot be replayed.

Check Your Exposure with HEROIC

HEROIC indexes more than 400 billion compromised records from stealer logs, combolists, and breached databases, including specialty dumps like CLOUDCOSMIC. Search your email at HEROIC to see whether the 166 PCS bundle or any other leak has compromised your credentials, then act fast to shut the attackers down.