What is the difference between IDS and IPS?

Intrusion Detection Systems (IDS) Intrusion Prevention Systems (IPS)
It only detects intrusions but unable to prevent intrusions. It detects and prevents intrusions.
It’s a monitoring system. It’s a control system.
It needs a human or another system to look at the results. It needs a regularly updated database with the latest threat data.

The main difference between them is that IDS is a monitoring system, while IPS is a control system. IDS doesn’t alter the network packets in any way, whereas IPS prevents the packet from delivery based on the contents of the packet, much like how a firewall prevents traffic by IP address.
ntrusion Detection System: An IDS is designed to detect a potential incident, generate an alert, and do nothing to prevent the incident from occurring. … Intrusion Prevention System: An IPS, on the other hand, is designed to take action to block anything that it believes to be a threat to the protected system.

Intrusion detection systems (IDS) and intrusion prevention systems (IPS) constantly watch your network, identifying possible incidents and logging information about them, stopping the incidents, and reporting them to security administrators.