A security policy defines the rules for protecting an organization's assets. It says what is allowed, what is prohibited, and who is responsible. Password requirements, acceptable use, data classification, incident reporting, remote access. Each area gets its own policy or a section within a broader document. The policy is the foundation. Procedures and standards build on top of it.

A policy that nobody reads is worthless. The best policies are short, clear, and enforced. They explain the why, not just the what. Employees follow rules they understand. They ignore rules that feel arbitrary. Policy development involves stakeholders from across the organization. Legal, HR, IT, and business units all have input. The policy must align with laws and regulations. It must also be practical. A policy that forbids all USB drives is easy to write and hard to enforce. A policy that requires encryption on approved drives is more workable. Policies need review. Business changes, threats change, and regulations change. An annual review keeps the policy current. Without it, the document describes a company that no longer exists.

Common security policies

• Acceptable use — what employees can do with company systems
• Access control — who gets access to what and how
• Data classification — how data is labeled and handled
• Incident response — how to report and handle breaches
• Remote access — rules for working outside the office

A policy is a promise. It tells employees what the organization expects and what the organization will do to protect them.