Cybersecurity
Network Security
Definition
Network security is a broad term that covers a multitude of technologies, devices, and processes. In its simplest term, it is a set of rules and configurations designed to protect the integrity, confidentiality, and accessibility of computer networks and data using both software and hardware technologies.
Why It Matters
The network is the primary medium through which attacks are delivered and data is exfiltrated. Securing the network is a critical layer of defense for any organization.
Contextual Example
Network security involves using firewalls to control traffic, intrusion detection systems (IDS/IPS) to monitor for attacks, segmenting the network to isolate critical systems, and using VPNs for secure remote access.
Common Misunderstandings
- Network security is about protecting the "pipes" through which data flows.
- It is a key component of a defense-in-depth strategy.