network security layers

Assume you are a network administrator. You keep the internal network secure through a defense-in-depth strategy. Your company has many remote users, all of whom must adhere to a comprehensive VPN policy The policy states that only company-owned devices may connect to the internal network over a VPN connection. However, the company president, who is a former tech consultant, set up VPN access from her personal laptop for convenience.

Answer the following question(s):

How do you enforce the VPN policy for the company president? Provide rationale for your answer.