Content filters ..................................................................................................................................... 553 Filter classification and blocking levels ......................................................................................... 554 Filter strength ...................................................................................................................................... 554 Prompt attacks .................................................................................................................................... 555 Denied topics ....................................................................................................................................... 557 Sensitive information filters ............................................................................................................. 558 Word filters .......................................................................................................................................... 564 Contextual grounding check ............................................................................................................ 564 Block images with image content filter ......................................................................................... 571 Prerequisites for using guardrails ......................................................................................................... 578 Create a guardrail .................................................................................................................................... 579 Permissions for Amazon Bedrock Guardrails ..................................................................................... 588