What is network security?

According to the SANS Institute, network security is the process of taking preventative measures to protect the underlying networking infrastructure from unauthorized access, misuse, malfunction, modification, destruction or improper disclosure. Implementing these measures allows computers, users and programs to perform their permitted critical functions within a secure environment.

Securing a network requires a complex combination of hardware devices, such as routers, firewalls and anti-malware software applications. Government agencies and businesses employ highly skilled information security analysts to implement security plans and constantly monitor the efficacy of these plans.

Why is network security important?

Network security is important for home networks as well as in the business world. Most homes with high-speed internet connections have one or more wireless routers, which could be exploited if not properly secured. A solid network security system helps reduce the risk of data loss, theft and sabotage.