What should a Citrix Architect identify as a potential security risk that should be resolved in the next design, based on the current provision for external access?

While Citrix Web Interface is an older component, its mere use does not inherently constitute a security risk if properly secured and accessed through a secure gateway.

Citrix Online Plug-in 12.1 is an older client version, but the use of an outdated client is typically a component upgrade recommendation rather than a fundamental security risk that the *design* must resolve.

Using NetScaler Gateway to load balance StoreFront is a standard, recommended, and secure architectural practice for external access to Citrix environments, not a security risk.

Single-factor authentication for external access is a major security vulnerability because it provides only one layer of protection, making systems highly susceptible to credential theft and brute-force attacks. Implementing multi-factor authentication (MFA) is a critical security best practice for external access.