What data does Seerguard access?

Seerguard accesses only the following data, all through official Chrome Extension APIs:

• Extension metadata — Name, version, permissions, install type, enabled status, and icon of each installed extension. This is accessed via the chrome.management API.
• Network request origins — When enabled, Seerguard monitors which domains other extensions contact (not the content, just the domain name). This helps detect data exfiltration. Accessed via chrome.webRequest.

What data does Seerguard NOT access?

• Your browsing history
• Your cookies or login credentials
• Contents of web pages you visit
• Your personal files or documents
• Your identity or account information
• Any form data you enter

External services

Seerguard uses the following services for threat detection. Only extension IDs are sent — no personal data.

• Seerguard API (our own backend) — Primary service. Analyzes permissions, CSP, vulnerable libraries (RetireJS), code patterns, and Web Store metadata. Hosted on Fly.io. Only extension IDs are sent.
• CRXcavator API (api.crxcavator.io) — Fallback when Seerguard API data is unavailable. Public security tool by Duo Security. Learn more.
• Chrome Web Store update API (clients2.google.com) — Verifies if extensions are still available on the store.

No personal information is included in any request. Extension IDs are public identifiers shown on the Chrome Web Store.

Data storage

All scan results, trust scores, change history, settings, and network logs are stored locally on your device using Chrome's chrome.storage.local API. Settings are synced across your Chrome instances using chrome.storage.sync.

No data is stored on external servers. No accounts are required. No telemetry is collected.

Data sharing

Seerguard does not share, sell, or transmit your data to any third party. Period.

Permissions explained

• management — Read the list of installed extensions and their metadata
• storage — Save scan results locally on your device
• alarms — Schedule automatic periodic scans
• notifications — Show desktop alerts when threats are detected
• webRequest — Monitor which domains extensions contact
• Host permissions — Limited to our Seerguard API, CRXcavator, and Chrome Web Store — for fetching security data only

Your rights

• Clear all scan data from Settings → Clear Data
• Clear API cache from Settings → Clear API Cache
• Disable network monitoring from Settings
• Disable threat intelligence API from Settings
• Uninstalling Seerguard removes all stored data

Open source

Seerguard's source code is available for inspection. You can verify everything stated in this policy by reading the code yourself.

Contact

Questions about privacy? Contact us at seerrorworks@gmail.com

Changes

If we update this policy, changes will be noted here with a new "Last updated" date. Significant changes will be communicated through an extension update notification.

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