Being proactive, rather than being reactive, is the key to effective incidence response.
Document Incident Response Policies: Establish policies, procedures, and techniques to be able to respond to security incidents effectively.
Guidelines for Incident Response Communication: Establish standard guidelines for seamless communication before, during, and after an incident. Create a communication plan, with guidance on who to contact, how, and when based on each incident type.
Leverage Threat Intelligence: Incorporate new threat feeds and update intelligence on ongoing basis.
Assess Security Posture: Assess your current threat detection capabilities and plan a risk assessment and improvement program.