Create SECURITY.md

Author: morningstarxcdcode

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x:                |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |
+
+We support only the versions listed above with security updates. Users are strongly encouraged to upgrade to a supported version.
+
+## Reporting a Vulnerability
+
+Please help us keep CodXCD-DevOps-Copilot and its users safe by responsibly disclosing security issues.
+
+- **Contact:** [security@yourdomain.com] or [GitHub Security Advisories](https://github.com/Bot-Maintains/CodXCD-DevOps-Copilot/security/advisories)
+- **Information:** Include steps to reproduce, impact assessment, and any relevant logs or PoCs.
+- **Response:** We will acknowledge reports within 48 hours and provide progress updates until resolution.
+- **Disclosure:** Please do not disclose vulnerabilities publicly until we have resolved them and coordinated disclosure.
+
+## Secure Development & Deployment Practices
+
+- **Dependency Management**
+  - All dependencies must be kept up-to-date with automated tools (Dependabot, npm audit).
+  - Use only well-maintained, reputable libraries.
+- **Code and Secret Scanning**
+  - CodeQL, secret scanning, and static analysis are enabled on all branches.
+  - No credentials, tokens, or sensitive data in code or configs.
+- **Branch Protection**
+  - Require pull request reviews, status checks, and signed commits before merging to main branches.
+- **2FA and Access Control**
+  - All contributors and maintainers must enable Two-Factor Authentication.
+  - Use least-privilege principle for GitHub Apps and tokens; review access regularly.
+- **Webhook Security**
+  - All webhook endpoints must require HTTPS and validate GitHub signatures.
+- **Audit & Monitoring**
+  - Enable audit logging, set up notifications for security events, and monitor for suspicious activity.
+  - Use GitHub Actions to trigger automated security tests on pull requests and pushes.
+
+## Automated Security Tools
+
+- **Static Application Security Testing (SAST):** Integrate tools like CodeQL and SonarQube in CI.
+- **Dynamic Application Security Testing (DAST):** Use dynamic scanners for deployed instances.
+- **Secret Detection:** Enable GitHub Secret Scanning and validate that no secrets are committed.
+- **Dependency Scanning:** Use Dependabot alerts and npm audit for all package updates.
+
+## Responsible Disclosure
+
+We support and encourage responsible disclosure. Security researchers who report vulnerabilities will be credited in our release notes upon request.
+
+## Additional Resources
+
+- [GitHub Security Documentation](https://docs.github.com/en/code-security)
+- [Security Advisories](https://github.com/Bot-Maintains/CodXCD-DevOps-Copilot/security/advisories)
+- [Responsible Disclosure Policy](https://github.com/Bot-Maintains/CodXCD-DevOps-Copilot/blob/main/SECURITY.md)
+
+---
+**Replace [sourav.xcd@gmail.com] with your actual contact email.**
+
+Place this file as SECURITY.md in the root or .github directory of your repository.