Incident Response Team (IRT) Policies

No matter how well an organizations data is protected, eventually there will be a breach of security or a natural disaster. Well prepared organizations create an incident response team (IRT). Chapter 12 focuses on the IRT team by discussing its various roles and responsibilities.
1. What is the relationship between a BIA, a BCP, and a DRP?
2. What are some best practices YOU recommend in regards to incident response policies?