O365 - sensitive data discover

[Deleted]

Hi 

If I want to search all users mailbox and/or OD4B for (any) sensitive data - e.g. Social Security number

I 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? 

 

[#2 · Accepted solution]

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...