Hi If I want to search all users mailbox and/or OD4B for (any) sensitive data - e.g. Social Security numberI would use:Content search - with the string 'SSN' as query or the actual SSN 'syntax'? Or eDiscovery? Or Advanced Retention and then delete the 'content' if a condition are true ?are there any - step-by-step guides/how-to available?
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eDiscovery and content searches use the same backend processes, either of those functionalities would do. Refer to the documentation for step-by-step instructions: https://support.office.com/en-ie/article/content-search-in-office-365-53390468-eec6-45cb-b6cd-7511f9...