How does Zscaler Cloud Sandbox protect against unknown malicious files?

Zscaler Cloud Sandbox effectively protects against unknown malicious files by detonating them in an isolated environment. This approach allows the security system to observe the behavior of potential threats without risk to the organization's network infrastructure. By executing unknown files in a controlled setting, the sandbox can determine whether the file exhibits malicious activity, such as attempting to connect to command and control servers, modifying system files, or exploiting vulnerabilities.

This method is particularly beneficial for recognizing and mitigating threats that traditional security measures may overlook, especially those that are brand new or have not yet been classified as malicious by threat intelligence updates. By isolating these unknown files and analyzing their actions, Zscaler can provide a higher level of security and prevent potential breaches from occurring within the business environment.

The other choices do not provide the same level of proactive defense against unknown threats. While user feedback and antivirus scanning can be useful, they do not offer the immediate and dynamic analysis needed to handle files that have yet to be identified as malicious. Moreover, detaining known files does not address the threat of unknown files that may cause harm. Thus, detonating unknown files in a sandbox is the most effective method for accurately assessing and managing potential risks from malicious content.