Cit0day Premium.tar.gz Apr 2026

Use grep -r "target-domain.com" /path/to/extracted/data to find credentials associated with specific websites.

Over 226 million unique email and password pairs.

Use an isolated virtual machine (VM) or a dedicated "air-gapped" environment for extraction. These archives often contain malformed files or occasional malware included by the leakers. Extraction Commands: Linux/macOS: tar -xzvf Cit0day_Premium.tar.gz Cit0day Premium.tar.gz

Use tools like 7-Zip or WinRAR to handle the nested .tar , .gz , and .rar formats. 3. Parsing and Searching

The file is part of a massive 2020 data breach collection. Cit0day.in was a commercial service that indexed thousands of previously hacked databases for cybercriminals; after its shutdown, a 120GB backup of its contents was leaked publicly. Use grep -r "target-domain

The sheer number of files makes manual searching impossible. For research or security analysis, use automated tools:

Use scripts like the Cit0day Password Checker on GitHub to cross-reference personal or corporate domains against the leak list. These archives often contain malformed files or occasional

A mix of clear-text passwords (approx. 27%) and various password hashes (MD5, SHA-1, etc.).