This document presents a comprehensive network security plan designed for business environments, emphasizing the critical role of network security in safeguarding data and maintaining operational integrity. It begins with an introduction to network security principles, highlighting its importance in protecting against both internal and external threats. The scope of the plan is defined, followed by clearly stated objectives, including resource protection, authentication, authorization, and data integrity. The document outlines key assumptions about potential security breaches and the need for proactive measures. A detailed risk analysis section identifies physical and non-physical assets, assesses potential risks, and summarizes vulnerabilities. Security policies are extensively covered, including acceptable use, email and communications, internet and network access, workstation, antivirus, DMZ, extranet, VPN and remote access, wireless and BYOD, firewall, intrusion detection, vulnerability scanning, internet, IP addressing, physical security, personnel, data, and system/hardware policies. The plan also addresses disaster recovery and business continuity, incorporating business impact analysis, insurance considerations, incident response team setup, physical safeguards, incident response procedures, restoration procedures, and forensics considerations. It concludes with security strategies, recommended controls, a list of residual risks, resource allocation, and a comprehensive list of references. This plan provides a structured approach to network security, aiming to minimize risks and ensure business resilience.