What does intrusion detection primarily focus on?

Intrusion detection primarily focuses on identifying unauthorized access attempts to a system or network. This is crucial for maintaining the security and integrity of information systems. Intrusion detection systems (IDS) are designed to notice deviations from normal behavior that may indicate a security incident, such as attempts to exploit vulnerabilities or unauthorized access by hackers.

By identifying unauthorized access attempts, an IDS can alert security personnel to potential breaches, allowing for timely investigations and responses. This capability is vital in protecting sensitive data and ensuring that organizations can mitigate risks before they result in significant damage.

While monitoring legitimate user access attempts and user behavior on social media are important for other aspects of security and user management, they do not align with the primary focus of intrusion detection, which is primarily concerned with detecting and responding to possible threats and breaches. Preventing all network traffic is not a realistic or effective security strategy, as it would hinder legitimate business operations and communication.