How to Test a File Against DLP Sensitive Information Types

Sensitive Information types (SITs) are definitions of data like credit card numbers used by DLP rules to detect potential external sharing violations. Knowing what SIT to use in a DLP rule is often difficult, which is why the Purview developers have added a test option to allow tenants to test files against individual SITs or all SITs to see what happens. https://office365itpros.com/2026/03/04/sensitive-information-type-test/