Responses
When we have many security tools to guard our networks, it is important that we use automation to identify events and where possible to provide an automated response. This frees up the security operation center (SOC) staff to be able to take on board other useful security tasks. Security Orchestration Automation and Response (SOAR) is a modern approach to respond to real-time threats and alerts. Playbooks can be used to create or provide an automated response. A playbook could be a simple ruleset or a complex set of actions.
Firewall rules
Firewall rules are important to have in place, as they protect your perimeter network services placed in your Demilitarized Zone (DMZ). Firewall rules will also protect your internal resources when deployed as host-based firewalls. Firewall rules may be modified based upon a changing threat landscape and new adversaries. Bad actor IP address ranges may need to be updated on your firewalls.