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SECURITY.md

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+# Security Policy for PyATS VLAN Trunk Interface Test Script
+
+## Purpose
+This security policy outlines the measures and best practices to ensure the safe and secure execution of the PyATS script for adding a VLAN to a trunk interface on NX-OS switches. Adhering to this policy will help prevent unauthorized access and modifications, protect sensitive information, and ensure the integrity and availability of network devices.
+
+## Scope
+This policy applies to all users who have access to the PyATS script and the associated network devices defined in the testbed file.
+
+## Security Measures
+
+### 1. Access Control
+- **User Authentication**: Ensure that only authorized personnel have access to the script and the network devices.
+- **Testbed Credentials**: Store testbed credentials securely. Avoid hardcoding sensitive information (e.g., usernames, passwords) directly in the script. Use environment variables or encrypted files to manage credentials.
+- **Least Privilege**: Assign the minimum necessary privileges to the user accounts used in the testbed configuration to limit potential damage in case of credential compromise.
+
+### 2. Data Protection
+- **Encryption**: Use secure communication protocols (e.g., SSH) to connect to network devices, ensuring that data transmitted over the network is encrypted.
+- **Sensitive Information**: Avoid logging sensitive information such as passwords or device configurations in plaintext. Use secure logging practices.
+
+### 3. Environment Security
+- **Virtual Environment**: Run the script within a virtual environment to isolate dependencies and minimize the risk of conflicts with other installed packages.
+- **Secure Storage**: Store the testbed file and the script in a secure location with appropriate access controls to prevent unauthorized access and modifications.
+
+### 4. Network Security
+- **Firewall Rules**: Ensure that the network devices are protected by appropriate firewall rules to restrict access to trusted IP addresses only.
+- **VLAN Configuration**: Validate the VLAN ID and trunk interface parameters before applying changes to prevent accidental misconfigurations.
+
+### 5. Code Security
+- **Code Review**: Perform regular code reviews to identify and mitigate potential security vulnerabilities.
+- **Update Libraries**: Keep the PyATS and Genie libraries up to date to ensure that security patches and improvements are applied.
+
+### 6. Incident Response
+- **Logging and Monitoring**: Implement logging and monitoring to track script executions and detect any unauthorized or suspicious activities.
+- **Incident Handling**: Establish procedures for responding to security incidents, including the identification, containment, eradication, and recovery phases.
+
+## Compliance
+- **Regular Audits**: Conduct regular security audits to ensure compliance with this policy and identify areas for improvement.
+- **Training**: Provide training and awareness programs for users to understand and adhere to this security policy.
+
+## Contacts
+For any security-related concerns or incidents, please contact [Your Name] at [your_email@example.com].
+
+## Approval and Review
+This security policy is approved by [Your Organization's Name] and will be reviewed annually or as needed in response to changes in the environment or emerging threats.
+
+---
+
+**Effective Date**: [Date]
+**Review Date**: [Date]
+**Version**: 1.0