What is Intrusion Detection Systems (IDS)?

Intrusion Detection Systems (IDS) are security systems that monitor network traffic or system activity for malicious activity or policy violations. They detect intrusions by analyzing network and system data, looking for patterns that match known attack signatures or deviations from normal behavior. When suspicious activity is detected, the IDS can alert administrators, log the event, and sometimes take actions to block or mitigate the threat. They are commonly used to provide an additional layer of defense to protect systems and data from unauthorized access and cyberattacks.