http://www.latimes.com/nation/politics/la-na-sanders-campaig... "The ex-employee, Josh Uretsky, told CNN that he wasn't trying to steal Clinton data but rather trying to understand the gap in security in the system."

The gap was a two-way street. So the Clinton campaign could have people breaching the other side as well that haven't been caught or revealed yet as well as other campaigns that have access to that system.