segmentation

Segmentation refers to the act of dividing a network or system into smaller, isolated subnets or cells, also known as segments. Each segment is typically designed with its own unique security controls and policies that limit access to sensitive resources and data based on user permissions and roles.

Segmentation is essential for security for several reasons:

• Reducing the attack surface: By isolating different parts of a network or system, dividing the network will limit the potential impact of an attack, by reducing the attacker's ability to make lateral movement that will result in significant damage.
• Easier monitoring and control: By segmenting a network or system, security teams can more easily monitor and control access to sensitive resources and data.
• Compliance with regulatory requirements: performing segmentation is required in almost every regulation and compliance framework and can therefore help organizations meet these requirements and avoid expensive fines or legal action.

Segmentation is an important security practice that can help organizations improve their security and protect against a wide range of cyber threats.