Limits of DCM keyword list size?

Hi all,

Similar to my previous post of ECM/Endpoint Discover, I am looking for ways to conduct Endpoint Prevent responses on a much larger dataset of approximately 1 million records.

I understand that I cannot use ECM to conduct Endpoint Prevent responses, so I am looking at what the limits of using DCM and a long list of keywords. For example, if the data contains names, I could unique the list of Last Names from the dataset to create a list of keywords. I could then create a policy that only triggers if more than (say 1000) of these keywords appear.

Is there a limit to the number of keywords that can be scanned in this way? Will it ground the endpoint system to a halt for every file transfer?

Thanks,
Nic