CyanLine’s Domain Breach Check is a method to determine whether email accounts within your organization’s domain have become vulnerable due to data breaches.

Our database currently contains 648,000,000+ real-world emails that were previously exposed and are likely compromised. Our records represent a unique compilation of various, significant breaches.

Disclaimer: CyanLine in no way, shape, or form records any data that is input into our breach checking system. This tool is for improving organizational or personal cybersecurity.