A wireframe is a low-fidelity outline of an interface that shows structure, content placement, and user flow before visual design is added. It focuses on what each screen does, where controls sit, and how users move through a task, rather than on colors or branding.
In cyber security, wireframes matter because they shape security-sensitive journeys such as login, password reset, checkout, and admin workflows. Defenders use them to review authentication steps, permissions, and error handling early, when fixes are cheap. Attackers also study or imitate wireframes when building convincing phishing pages or fake portals, since a clear layout can reveal which controls users expect and where trust cues belong. Reviewing wireframes for weak flows, exposed data, and unnecessary steps helps reduce both usability and security risk.