What type of servers does Zscaler block connections to?

Zscaler blocks connections to command-and-control servers due to their association with harmful activities, such as malware distribution, data exfiltration, and other cyber threats. Command-and-control servers are primarily used by cybercriminals to maintain communication with compromised systems within a network. By blocking access to these types of servers, Zscaler helps to prevent potential data breaches and protects users from being exploited by malware.

Other types of servers, such as public servers, cloud storage servers, and shared hosting servers, can serve legitimate purposes in various use cases. While there might be risks associated with any of these server types if improperly secured or misused, Zscaler specifically targets command-and-control servers since they pose a direct threat to network security and are a common method for attackers to impose harm.