Create SECURITY.md

Author: morningstarxcdcode

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version         | Supported          |
+| --------------- | ----------------- |
+| 2025.x.x (main) | :white_check_mark:|
+| Earlier         | :x:               |
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability, **do not create a public issue**. Instead:
+
+1. **Email:** security@mstarrobotics.com  
+2. **PGP:** [Download our public key](https://mstarrobotics.com/security/pgp-key.asc) to encrypt sensitive information.
+3. Provide:
+    - Versions affected
+    - Step-by-step reproduction instructions
+    - Potential impact
+    - Your contact information
+
+We will respond within **72 hours**. If you do not receive a response, please resend your email or contact a project maintainer via [GitHub Discussions](https://github.com/MStarRobotics/RSS2025/discussions).
+
+## Security Best Practices
+
+- **Update Regularly:** Keep all dependencies, ROS 2 packages, and OS components up to date.
+- **Access Control:** Use strong, unique passwords and enable 2FA for all accounts and APIs.
+- **Network Security:** Restrict access using firewalls, VPNs, and secure communication protocols (TLS 1.3+).
+- **Data Protection:** Encrypt sensitive data at rest and in transit.
+- **Secrets Management:** Never commit secrets, credentials, or sensitive keys to the repository. Use secrets managers and environment variables.
+- **Least Privilege:** Grant only the minimum permissions necessary to users, services, and robots.
+
+## Automated Code Scanning and CI/CD
+
+- All code changes are automatically scanned for vulnerabilities using [GitHub Advanced Security](https://docs.github.com/en/code-security).
+- Use [Dependabot](https://github.com/dependabot) for automatic dependency updates.
+- All pull requests must pass security and static analysis checks before merging.
+
+## Supply Chain Security
+
+- Only trusted, verified sources for dependencies are permitted.
+- All third-party code must be reviewed and logged in [THIRD_PARTY.md](./THIRD_PARTY.md).
+- Signed commits and [SLSA Level 3](https://slsa.dev/spec/v0.1/requirements) compliance are strongly recommended.
+
+## Vulnerability Management
+
+- Critical vulnerabilities will trigger an immediate embargo, patch, and responsible disclosure process.
+- Patches are prioritized based on CVSS severity and exploitability.
+- Users will be notified via [GitHub Security Advisories](https://github.com/MStarRobotics/RSS2025/security/advisories).
+
+## Responsible Disclosure Timeline
+
+| Action                        | Timeline            |
+|-------------------------------|---------------------|
+| Acknowledgement of report     | Within 72 hours     |
+| Initial assessment            | Within 7 days       |
+| Patch release (if required)   | As soon as possible |
+| Public disclosure             | After patch release |
+
+## Compliance and Certifications
+
+- Follows [OWASP ASVS](https://owasp.org/www-project-application-security-verification-standard/) and [NIST CSF](https://www.nist.gov/cyberframework).
+- GDPR, CCPA, and other privacy regulations are supported where applicable.
+- All contributors are required to follow project [Code of Conduct](./CODE_OF_CONDUCT.md).
+
+## Security Resources
+
+- [ROS 2 Security Best Practices](https://docs.ros.org/en/rolling/Guide/Security.html)
+- [GitHub Security Documentation](https://docs.github.com/en/code-security)
+
+---
+
+For urgent matters, please use the contact methods above. Thank you for helping keep RSS2025 and its users safe!