The Cisco WSA can participate in the Cisco SensorBase Network, which is a threat management database that collects and shares data from Cisco security products. By participating in the SensorBase Network, the WSA can receive web reputation scores and URL categories for the requested web content, and also contribute data to improve the accuracy and efficacy of the service. The data that the WSA sends to the SensorBase Network servers includes information about request attributes and how the appliance handles requests. However, to protect the privacy and confidentiality of the users and the organization, the WSA does not send the complete URL, but only the summarized server-name information and the MD5-hashed path information. The MD5 hash is a one-way encryption algorithm that converts the path information into a fixed-length string that cannot be reversed. This way, the SensorBase Network can identify the URL without revealing the actual content or parameters of the request. The WSA also does not send any personal or confidential information such as usernames and passwords, or any information about HTTPS transactions, except for the IP address, web reputation score, and URL category of the server name in the certificate. The SensorBase Network Participation is enabled by default, but it can be disabled by the administrator if desired123. References: 3: Web Base Network Participation (WBNP) and Sender Base Network Participation (SBNP) - Cisco 2: User Guide for AsyncOS 15.0 for Cisco Secure Web Appliance - GD (General Deployment) - Introduction 1: User Guide for AsyncOS 12.0 for Cisco Web Security Appliances - GD (General Deployment) - Introduction