Question 50
Before accepting a Zscaler configuration change, the team discovers: An admin registers a wildcard under a vendor's shared domain, allowing both the required invoice endpoint and a malicious subdomain created later. What ongoing operational safeguard should the team adopt?
Explanation
Correct Answer
This safeguard mitigates custom category wildcard includes malicious sibling: Audit wildcard categories and require app-owner confirmation before adding entire parent domains. The risk being controlled is: Wildcard category matches can extend beyond intended hosts and may incorporate newly registered or compromised subdomains. A safeguard for an unrelated failure would not address it.
Incorrect Answers
A caution or warning user experience is not identical to a hard block and may allow users to proceed under supported policy behavior. “Document business meaning of allow, caution and block actions and validate the effective result for each control” would remedy that alternative situation, but it would not correct the present issue: wildcard category matches can extend beyond intended hosts and may incorporate newly registered or compromised subdomains.
“Validate safety controls in multiple supported browsers and against direct service URLs after provider interface changes” is the supported response when blocking an entire application is not equivalent to applying the supported safe-search or restricted-mode policy settings for the intended user group. Here the decisive response is “Audit wildcard categories and require app-owner confirmation before adding entire parent domains”, so that different intervention does not meet the stated requirement.
URL filtering permission and downstream threat or data controls are distinct checks; a web allow does not prove a benign file or session. “Review exception scope across URL, threat, SSL and data policies rather than treating allow lists as unconditional trust” applies to that other condition. The reported evidence is an admin registers a wildcard under a vendor's shared domain, allowing both the required invoice endpoint and a malicious subdomain created later; this alternative would address the wrong dependency.