Zscaler External Attack Surface Management (EASM) uses the specific term "Lookalike Domains" to identify and monitor domains created by malicious actors to impersonate an organization's brand. These domains often use typosquatting or other visual similarities to trick users for phishing or other fraudulent activities. The EASM platform automatically discovers these domains, assesses their risk, and provides visibility to security teams so they can take appropriate action, such as initiating takedown procedures.

A. Fake Domains: This is a generic term and not the specific feature name used within the Zscaler EASM product.

B. Mimic Domains: While descriptive, this is not the official terminology Zscaler uses for this EASM capability.

C. Spoofing Domains: Spoofing typically refers to faking an email sender or IP address; "Lookalike Domains" is the more precise term for the domain impersonation risk itself.

1. Zscaler Help Portal. (n.d.). About the EASM Dashboard. Retrieved from Zscaler Help Portal. "The Lookalike Domains widget shows the total number of domains that are similar to your organization's domains."

2. Zscaler. (n.d.). Zscaler External Attack Surface Management [Data Sheet]. Retrieved from Zscaler's official website. The datasheet lists key capabilities, including the discovery of "lookalike domains used for phishing."

3. Zscaler Help Portal. (n.d.). About EASM Security Policies. Retrieved from Zscaler Help Portal. The documentation on EASM policies references the management and monitoring of assets, including discovered lookalike domains.