Establish an operational incident-handling capability for organizational systems that includes preparation, detection, analysis, containment, recovery, and user response activities.

By establishing a well organized and planned incident response capability you can mitigate the impact incidents have on your business.

Create an incident response plan and an incident response team. Your incident response plan needs to cover incident response preparation. This includes training exercises. Your plan needs to outline how you plan to detect, analyze, contain, and recover from incidents. You also need to outline how you will apply lessons learned from incidents to improve your incident response capability. You need to define common security incidents and devise methods to contain them. For example, if malware if discovered on a workstation you disconnect it from the network.