Your AI agent is one poisoned webpage away from doing something catastrophic

If your agent browses the web, reads emails, or pulls from a database - any of that content can contain hidden instructions that hijack it. This isn’t theoretical. It’s happening in production right now. A webpage footer tells your agent to forward credentials. An email signature tells it to ignore its guidelines. A retrieved document tells it to change behavior. The model has no idea the content isn’t a legitimate instruction. The fix isn’t better prompt filtering. Every content chunk should carry a trust level. Webpages, emails, tool outputs - zero instruction authority.