
PhishGuard by duke
An advanced phishing detection tool with a multi-layered analysis engine. A privacy-first browser extension that uses a hybrid AI model to detect phishing and social engineering cues in emails, providing real-time alerts and detailed explanations to
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You'll need Firefox to use this extension
Extension Metadata
About this extension
PhishGuard provides a powerful, multi-layered defense against modern phishing attacks. It uses a fast, local engine to instantly scan emails for known malicious patterns, sender anomalies, and brand impersonation. For high-risk threats, it can consult the OpenAI API for an expert-level analysis. The add-on is designed to empower users by explaining why an email is flagged, helping them learn to spot threats. With user consent, it also helps build an open, anonymized dataset of phishing tactics to benefit the entire security community.
Rated 5 by 1 reviewer
Permissions and dataLearn more
Required permissions:
- Access your data for mail.google.com
- Access your data for outlook.live.com
Optional permissions:
- Access your data for mail.google.com
- Access your data for outlook.live.com
- Access your data for api.openai.com
- Access your data for us.i.posthog.com
More information
- Version
- 2.7
- Size
- 24.04 KB
- Last updated
- a month ago (Aug 19, 2025)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection
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