Advice:

• Divide your network into segments to limit access to sensitive information and reduce the potential impact of a security breach. This practice helps contain attacks and restricts lateral movement by attackers within the network.
• Explanation: By segmenting networks, you ensure that even if a section is compromised, the rest remains protected. For example, you might keep guest devices on a separate network from internal resources.

Guideline:

• Use VLANs (Virtual Local Area Networks) to separate different types of traffic and implement access controls to restrict communication between different segments.

Implementation Steps:

• Configure your network switches to create VLANs based on departments or functions (e.g., HR, Finance, IT).
• Set up rules to control traffic flow between VLANs, allowing only necessary communications and applying access controls where appropriate.
• Regularly review and update VLAN configurations as organizational roles and functions evolve.