Intrusion Detection System
Intrusion Detection System
A system that monitors networks and computers to detect unauthorized intrusions.
In Simple Terms
An Intrusion Detection System is a mechanism that constantly watches computers and networks for suspicious traffic or signs of intrusion. It monitors the data flowing through a system and sends an alert to administrators whenever it spots something suspicious. It's typically installed at the entry points of company servers and networks to catch cyberattacks early.
Behind the Name
"Intrusion Detection System" does exactly what its name says — it's a system for detecting intrusions. It's often shortened to "IDS". Its job is to catch attackers sneaking into a network as early as possible.
Take a Closer Look!
An Intrusion Detection System is a system that monitors traffic on computers and networks to automatically spot signs of unauthorized access or cyberattacks.
It acts like an alarm system for a network, sending an alert to administrators the moment it detects something abnormal.
Broadly speaking, there are two types, depending on what they monitor.
The first type watches the data flowing across an entire network, while the second type watches activity happening inside a specific server or computer.
It finds intrusions by comparing traffic against a list of known dangerous patterns, or by flagging behavior that looks unusual compared to normal activity.
The system's main job is to detect intrusions, and in most cases it doesn't automatically block suspicious traffic on its own.
Because of that, it's typically used alongside quick action from administrators who receive the alerts, plus other defense systems working in combination.