I Built an AI Agent Team That Catches Phishing Emails in Seconds 🛡️ | Google ADK + Gemini

PhishGuard is a multi-agent AI system built using Google's Agentic AI Development Kit (ADK) and Gemini that automatically detects and classifies phishing emails as malicious, suspicious, or safe. The system uses specialized AI agents working together to analyze email content, headers, and metadata in seconds with explainable reasoning. This approach demonstrates practical application of agentic AI for cybersecurity, combining multiple agents for comprehensive email threat assessment.

Key Points

• •Multi-agent architecture: Specialized agents handle different aspects of email analysis (content, headers, sender reputation, links)
• •Three-tier classification system: Emails are categorized as malicious, suspicious, or safe with confidence scores
• •Explainable AI: System provides reasoning for each verdict, showing which factors triggered the classification
• •Google ADK + Gemini integration: Leverages Google's Agentic Development Kit for agent orchestration and Gemini for LLM capabilities
• •Real-time processing: Analyzes suspicious emails in seconds rather than minutes or hours
• •Header analysis: Examines email metadata, SPF/DKIM/DMARC records, and routing information for authenticity verification
• •Link and attachment scanning: Agents evaluate URLs and file attachments for malicious indicators
• •Sender reputation checking: Cross-references sender against known phishing databases and legitimate sources
• •Scalable agent coordination: Demonstrates how multiple AI agents can work together for complex security tasks

Workflow Diagram

Concepts