Privacy Policy

Last Updated: October 24, 2023

Thank you for trusting Security Guardian ("we", "us", or "this extension"). Your privacy and security are the core foundations of our product. As a tool focused on phishing detection and browser security, we understand the responsibility that comes with handling your web activity data.

This Privacy Policy aims to clearly and transparently explain how we collect, use, store, and disclose your information when you use the Security Guardian desktop browser extension. By installing and using this extension, you agree to the data processing methods described in this policy.

1. Data We Collect

We follow the principle of "data minimization" and only collect data necessary to provide core security detection features:

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URL InformationWe may process the domain names and full URL paths of the web pages you visit. To protect your privacy, these data are anonymized and hashed before transmission. The purpose of collecting this data is to perform real-time comparisons with our phishing website blacklist to identify and block malicious fraudulent sites.
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Device and Environment InformationIncluding browser type and version, operating system type, and the version number of this extension. This technical data is used to ensure compatibility across different environments, optimize detection algorithm performance, and troubleshoot technical issues.
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User-Submitted Threat ReportsWhen you actively use the extension's features to mark a site as "Safe" or "Dangerous," we collect the feedback information you submit. This data is used for community collaborative security mechanisms, helping to update the threat intelligence database and improve overall recognition accuracy.

2. How We Use Data

Core Detection Service

We use URL hash values for automatic comparison with local and cloud threat databases. This process is designed to block potential attacks with millisecond response times.

Product Improvement

We use aggregated, non-personally identifiable data to analyze macro security trends for publishing security reports or improving product features.

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Zero Data Sale Commitment

We never sell your browsing history, URL data, or any personal information to third-party data brokers or advertisers.

3. Data Protection and Storage

Local-First Processing:Most URL detections are completed directly in your local browser, minimizing data transmission.
Encrypted Standards:All transmissions use TLS 1.3, and server data is stored with AES-256 standard encryption.
Retention Policy:Technical logs are retained for only 30 days before being automatically and permanently deleted.

4. Your Rights

Access and Export

You can request a copy of the personal data we have collected from you at any time.

Correction and Deletion

You can exercise your "right to be forgotten" and request the complete deletion of all your related data.

Withdrawal of Consent

You can withdraw your consent at any time by uninstalling the extension or disabling specific cloud-enhanced security features.

Contact Us

If you have any questions about this Privacy Policy, please contact our privacy team:

privacy@0xshield.eth

We typically respond to all inquiries within 48 hours.