The rule 'Box Large Number of Downloads' is designed to monitor and detect unusual download activity by users within the Box platform. It triggers when a user exceeds a predefined threshold of 100 downloads in a 60-minute period. This threshold is set as a potential indicator of data exfiltration activities taking place over the web service, following the MITRE ATT&CK framework techniques TA0010 and T1567. The rule logs Box event types with a focus on user download events, aiming to flag excessive download behavior for investigation. The configurations of the rule allow for detailed information such as user IDs and IP addresses to be gathered for further analysis. The response to the alert involves verifying whether the download behavior aligns with the user's usual activities and understanding the rationale behind the download surge. Users who trigger this alert should have their activities examined for potential security implications, especially in contexts where sensitive data may be involved.