### Expanded Focus: Device-Based Firewall Profiles

#### Aim and Scope

The central aim is to develop a standardized architecture for secure device-based firewall profiles. This involves:

- **Creating a Standard for Firewall Profiles**: Defining a universal format and structure for firewall profiles that routers and firewall systems can easily understand and implement.
- **Facilitating Automated Configuration**: Enabling home and corporate routers to automatically interpret and apply these profiles, enhancing network security and reducing setup complexity.
- **Improving Device Security**: By standardizing firewall profiles, the goal is to reduce the attack surface of devices and lower the chances of vulnerabilities being exploited.

#### Proposed Structure

1. **General Structure**:

   ```plaintext
   /.well-known/device-instructions
       /{manufacturer}
           /security-contact.json       # Manufacturer security contact information
           /{device-model}
               /firewall-profile.json   # Firewall profile for the device
               /security-contact.json   # Security contact information
   ```

   - Each device model has a `firewall-profile.json` detailing the suggested firewall settings and rules for that specific device.
   - The `security-contact.json` remains a supportive feature for reporting security concerns.

2. **Firewall Profile Content**:
   - **Profile Definition**: `firewall-profile.json` contains the necessary firewall rules and settings tailored for the device.
   - **Format and Standards**: The profile should be in a standardized format (like JSON) that is easy for routers and firewalls to parse and implement.
   - **Documentation**: Include comments or explanations within the profile to clarify the purpose and necessity of each rule.

3. **Response Time Specification** (for `security-contact.json`):
   - A section in `security-contact.json` to specify the expected response time for inquiries, maintaining a clear communication channel for security issues.

#### Expanded Goals

- **Ease of Implementation**: Ensure that the firewall profile structure is straightforward to implement by device manufacturers and easily interpretable by router and firewall systems.
- **Interoperability**: Design the profiles universally applicable across different network environments and router models.
- **Dynamic Updating**: Consider mechanisms for updating firewall profiles as device firmware and threat landscapes evolve.
- **Security Reporting**: While not the primary focus, maintain an efficient and straightforward mechanism for reporting security issues, complementing the overall security architecture.

#### Additional Considerations

- **Testing and Validation**: Encourage thorough testing of the firewall profiles in various network scenarios to ensure effectiveness and compatibility.
- **Community and Industry Feedback**: Engage with the broader tech community, including security experts and network administrators, for feedback and suggestions.