Customer wants to scan the contents of SharePoint Lists.
Office 365 Securlet with Microsoft 365:
SharePoint Lists contain structured data (tables) and unstructured data (files as attachments).
Structured data (tables) will likely not be supported. ETA dependent on MSFT, unknown as of now.
We're working with MSFT to design a solution to support unstructured data (attachments) in Lists.
Microsoft has not yet exposed this option via API so CloudSOC cannot scan the contents of SharePoint Lists.