Last updated: April 2026
NeuroShield does not collect, transmit, or store any personal data. Period.
All visual analysis runs entirely within your browser. Video frames are sampled into a tiny offscreen canvas (32x32 pixels) for luminance computation. This data exists only in memory for the duration of analysis and is never saved, logged, or sent anywhere.
NeuroShield stores only your extension preferences (enabled/disabled state and sensitivity level) using Chrome's local storage API (chrome.storage.local). This data never leaves your device and is not synced to any cloud service.
NeuroShield makes zero network requests. It does not phone home, check for updates independently, send telemetry, or communicate with any external server.
- storage: Saves your sensitivity preferences locally on your device.
- Content script access (all URLs): Required to inject the flash detection engine into webpages. The content script only analyzes visual luminance of media elements — it does not read page content, form data, cookies, or any personally identifiable information.
NeuroShield shares no data with any third party because it collects no data.
If this policy changes, the update will be published in the repository and noted in the extension changelog.
Open an issue on the GitHub repository for any privacy concerns.