Anomaly detection is the use of AI to automatically spot data points that deviate sharply from normal patterns: unusual transactions, sudden traffic spikes, or a machine vibrating abnormally. The system first learns what «normal» looks like from historical data, then raises alerts when something falls outside it. A telecom operator in Rabat can use it to catch SIM-card fraud, and a factory in Tangier to detect a production line drifting before an expensive breakdown occurs.