ScreenMask is built with privacy as the core principle.

1. No Data Collection: We do not collect, transmit, or store any of the content displayed on your screen. Your data stays yours.

2. Local Processing: All pattern matching, text redaction, and DOM manipulation happens completely locally within your Chrome browser. We do not use external APIs or cloud servers for the detection engine.

3. Extension Permissions:

• activeTab: Required to read the DOM and apply visual redactions (CSS blur or masking) when you activate the extension.
• storage: Required to save your settings, active patterns, and blur preferences locally.
• scripting: Required to inject the redaction scripts dynamically.

4. Analytics: We only track anonymous extension usage (installs/uninstalls) and popup interactions to improve the product. We never read or track the content of the pages you visit.

5. Changes to Policy: If we make significant changes to how we handle data, we will notify users through the extension update mechanism.