What is the purpose of a subnet's "security model"?

• A. It designates the subnet's tax policy.
• B. It fixes the subnet's geographic location.
• C. It defines validator requirements, staking, and consensus rules to ensure secure and reliable subnet operation.
• D. It designates the subnet's color in the UI.

Answer: (C)

The main idea is that a subnet’s security model establishes the rules that guarantee who can validate, how much stake they must put up, and the exact consensus rules the subnet uses to agree on the state of the network. By defining who is eligible to participate as validators, setting staking requirements, and detailing the consensus process, this model ensures the subnet operates securely and reliably. It isnures that validators follow a defined protocol to achieve agreement and finality, so the subnet remains trustworthy even as other parts of the system evolve. This focus on validator eligibility, staking, and consensus rules is what makes the security model central; it’s not about tax policy, geographic location, or UI color, which don’t influence how the subnet is secured.