Analysis
How to Stop Prompt Injection at Runtime
Publication date unknown · Discovered cranium.ai
Page published
Publication date unknown · First observed: 26 Oct 2026
Coverage timeline
Single-source analysis — one report is available.
Why it matters
Runtime authorization and privilege controls can limit the damage when an AI agent follows malicious instructions embedded in retrieved documents, emails, tickets, or web pages.
Cranium’s explainer argues that prompt-injection defenses should constrain what a compromised model can do rather than rely on input filtering alone. The article recommends runtime action authorization, least privilege, human approval for irreversible actions, and layered controls covering provenance, context classification, output handling, and telemetry.