You would need a content based tag if you are looking for particular content. Once you have the files tagged, you can apply restrictions on what can/can't be done with them.
So I can make a content category consisting of a text pattern correct?
You mentioned that "once I have the files tagged". Does that mean a DLP Discover has to be run using that content tag I previously created in order to get all the files tagged?
Is there a way to block files from being transferred internally using a content category? So that the files are checked when the transfer occurs between network drives and then files are blocked from being sent?
File System Protection Rule (used for monitoring traffic to network shares) does not support Blocking.
I cannot think of a way to block file transfer to network shares.
Thanks a lot vimalnavis, that answers my question perfectly.