Network security: What it is, different types, and safety solutions

Network security combines policies, tools, and controls that protect a network and its data from unauthorized access, misuse, and cyberattacks. Whether you manage a multinational company’s network infrastructure or just want to stop strangers and compromised devices from accessing your home Wi-Fi, network security matters. In this guide, I’ll explain how network security works, what its main controls are, which threats it addresses, and what steps businesses and home users can take to protect their networks.