This solution brief outlines the partnership between Westermo and Fortinet to deliver a security solution tailored for the power grid. The document details the integration of Westermo's Ethernet switches and cellular routers with Fortinet's FortiGate Next-Generation Firewall, FortiAuthenticator, and FortiPAM. It addresses the cybersecurity challenges faced by IT and OT organizations as the power grid undergoes digital transformation. The brief highlights the need for robust visibility, access control, and seamless integration to secure critical infrastructure. The solution components are designed to enhance IT and OT security, reduce capital and operational expenditures, and mitigate implementation risks. The document also describes the compatibility of the solution, emphasizing secure remote access and centralized management. Use cases illustrate how utilities can securely manage primary and secondary substations, ensuring reliable communications and protection against cyber threats. The brief concludes with a description of both companies, emphasizing their roles in providing secure connectivity for industrial applications.