Full course coming soon

Network Metadata Privacy for Security Professionals

7 chapters · 32 lessons

1. 1. Metadata Exposure in Modern Network Protocols

   5 lessons

   Map the lifecycle of a web request to identify where user intent leaks before content encryption takes effect.

2. 2. Encrypted Client Hello Implementation

   5 lessons

   Configure and deploy ECH across DNS, TLS, and certificate infrastructure with hands-on examples.

3. 3. DNS Privacy and Encrypted Resolution

   4 lessons

   Deploy DNS over HTTPS and DNS over TLS to prevent query leakage that undermines ECH.

4. 4. Infrastructure Design for Metadata Confidentiality

   5 lessons

   Architect hosting, routing, and certificate strategies that reduce observable signals about user destinations.

5. 5. Monitoring and Troubleshooting Encrypted Metadata

   4 lessons

   Adapt observability and incident response workflows to work with ECH and encrypted DNS.

6. 6. Threat Modeling for Sensitive User Journeys

   5 lessons

   Apply metadata privacy controls to real-world scenarios like whistleblower portals, health services, and employee reporting.

7. 7. Deployment Roadmap and Governance

   4 lessons

   Plan phased rollouts, coordinate cross-functional teams, and establish policies for metadata protection programs.