Injection attacks are among the oldest tricks in the attacker playbook. And yet they persist. The problem is that the core weakness, trusting user inputs too much, keeps resurfacing in new forms. As organizations have shifted to API-driven architectures and integrated AI systems that consume unstructured input, the attack surface has expanded dramatically. As a result, injection is no longer just a server-side SQL issue: it now encompasses NoSQL, GraphQL, cross-site scripting (XSS), AI prompts,…