Datadog's Sensitive Data Scanner is a tool that scans data at ingestion time to detect and scrub sensitive information, reducing the risk of data leaks. It can be configured to monitor various types of sensitive data across different Datadog products, such as logs, APM, RUM, and Events. The scanner provides out-of-the-box rules for detecting common instances of sensitive data and allows custom rule configuration to fit specific application needs. Once enabled, the scanner tags detected sensitive data with relevant information, making it easily searchable and useful for compliance audits and investigations. By leveraging Sensitive Data Scanner, users can remove sensitive data from RUM sessions, obfuscate sensitive data from APM traces, and extend their compliance strategy to cover all services in a single pane of glass.