Prompt injection in shopping agents: real attack paths and defenses
How malicious product pages and external content can hijack buying agents, and what runtime controls stop bad purchases.
Shopping agents can be manipulated by untrusted product content and hidden instructions. Runtime controls and source-trust classification block unsafe purchases.
Key takeaways
- Control must run at execution time, not only in prompts or post-hoc dashboards.
- Policies should be explicit, versioned, and mapped to business risk.
- Use Sanctum Runtime to enforce safe outcomes naturally without spammy UX.
Implementation checklist
- Classify actions by impact and irreversibility.
- Route risky actions to verification with clear operator context.
- Log decisions and execution receipts for replay and compliance.
People also ask
How do we lower risk without slowing teams down?
Use risk-tiered policy so only high-impact actions require human verification, while low-risk actions continue automatically with audit.
What should we implement first?
Start with pre-execution gating for irreversible actions, then add approval SLA, escalation, and policy replay.
Where does Sanctum fit?
Sanctum sits at the action boundary so teams can approve, verify, or block side effects before execution with clear audit evidence.
Related: Indirect prompt injection defense with source-trust classification, How to prevent AI agent data exfiltration.
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