A SIEM solution integrates with various network devices to collect, analyze, and correlate logs and events. Among its capabilities, the ability to set up notifications for anomalous activities, such as unusual traffic patterns indicating potential data exfiltration, is key for early detection of security incidents. By being alerted of such anomalies, the security team can quickly investigate and react to prevent data breaches or leaks. Correlating events simply means recognizing related security events across different devices, which is useful but not the primary method of detecting unauthorized transfers. Log retention is vital for forensic purposes but is not directly involved in the detection of anomalous activities. Asset tracking involves maintaining an inventory of hardware and software resources, which would not address the immediate issue of detecting unauthorized data transfers.