What does a response system do when an intrusion is detected?

A response system is designed to react promptly and effectively to detected intrusions to minimize harm and bolster security. When an intrusion is identified, the primary function of the response system is to issue countermeasures. These countermeasures can include actions such as alerting security personnel, blocking the attacking IP address, initiating specific security protocols, or quarantining affected systems. The goal of these responses is to mitigate the threat and protect the integrity of the network.

In contrast, other options do not align with the primary purpose of a response system in the event of an intrusion. Performing a system update, for example, is generally a routine maintenance task and does not specifically address immediate security threats. Increasing network speed does not relate to responding to intrusions and would not address the need for security measures. Disconnecting the device might be a possible reaction in some cases, but issuing countermeasures encompasses a broader range of proactive actions aimed at not only stopping the threat but also managing the overall risk to the system.