SEO fraud is the abuse of search engines to inflate rankings, visibility, or traffic for financial gain. Attackers may manipulate pages, links, redirects, or server responses so a target site appears more relevant than it really is, or so users are funneled to a malicious destination. In cyber security, this matters because search traffic can be turned into a monetization channel for scams, ad fraud, credential theft, or data harvesting.
In real attacks, SEO fraud may involve keyword stuffing, cloaked pages that show different content to crawlers than to humans, hidden redirects, or compromised web servers that alter responses at the request layer. Defenders look for unusual content changes, crawler-specific behavior, unauthorized server modules, and spikes in suspicious search traffic. Because the abuse is server-side or content-side, ordinary site monitoring may miss it unless logs, page rendering, and SEO signals are checked together.