Home › Claude AI › claudearchitect › claudeai_guardrails › Pre-filtering user input mainly protects against:
Pre-filtering user input mainly protects against:
AHigh token cost
BSlow responses
CPrompt injection and leaked PII reaching Claude
DCache misses
Answer & Solution
Correct answer: C. Prompt injection and leaked PII reaching Claude
Scrubbing input at the door stops injected instructions and sensitive data from ever reaching the model, the cheapest defence layer.
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