How do you setup an Exchange 2010 Transport Rule to find number patterns like social security number?

I was asked this by a university in Phoenix. Here is what I found from our Exchange product team:

Prerequisites to make pattern matching work well:

You need Exchange 2007 Sp1 with Rollup10 or Exchange 2007 Sp2 or Exchange 2010

How do I create a sample rule?

In Exchange Command Shell type:

PS] D:\Users\Administrator\Desktop>New-TransportRule testrule -SubjectOrBodyMatchesPatterns "\d\d\d-\d\d-\d\d\d\d\s|$"

The result of the rule firing is:

More on transport rules here.