# Nightfall for Microsoft Exchange Nightfall for Microsoft Exchange prevents sensitive content that is shared through Microsoft Outlook. Sensitive information and specific types of data like social security numbers, credit card numbers, or passwords are scanned and prevented from unintentional leakage. Nightfall for Microsoft Exchange scans all data that is exchanged over emails and prevents sensitive information (such as credit card numbers or health records) from being leaked. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.nightfall.ai/microsoft-exchange/exchange_online.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.