Placeholder Domains Used by 349 AI Agent Skills Found Redirecting to Scams

Manifold Security found that common unreserved documentation placeholder domains (e.g., yoursite.com, your-domain.com) appear in hundreds of thousands of GitHub files and hundreds of AI agent skills; when loaded in real macOS browser sessions JavaScript-assembled redirects led to fake antivirus and investment scam pages, demonstrating that static checks miss these runtime, environment-specific cloaked ad chains and advising developers and AI tools to treat unreserved placeholder URLs with caution.