Final answer:
The formalized or ad hoc team that can be called upon to respond to an incident after it arises is the Incident Response Team (IRT) or the Computer Security Incident Response Team (CSIRT).
Step-by-step explanation:
The ad hoc team that you can call upon to respond to an incident after it arises is the Incident Response Team (IRT). The IRT is a group of professionals with expertise in different areas, such as computer security and forensics, who come together to handle security incidents and respond promptly to mitigate any damage or potential risks.
Another formalized team you can call upon is the Computer Security Incident Response Team (CSIRT). CSIRTs are dedicated teams within organizations or institutions that focus on handling and responding to computer security incidents.
Both the IRT and CSIRT play important roles in incident response and help minimize the impact of incidents by employing efficient and effective incident management processes.