Although I agree with Vikram, the fellow who never sleeps, you have to be careful when you say "data leakage" as what SEP can NOT do is prevent transmission of social security numbers or addresses or anything matching that format, but it CAN monitor or control connection of devices, even specific brands/vendors, model numbers, etc. - and prevent or monitor FILE types, such as blocking writes of DOC files to a thumbdrive. But it can't allow DOC files but block DOC files that contain certain content. It's goes by file name and/or type, and devices.
So you can block all thumbdrives but allow a thumbdrive model AAA by PNY for example.
You can allow thumbdrives, but alert you if someone either reads a file matching *.DOC or saves a file named *.DOC to such a drive.
VERY flexible, IMO - but won't manage or watch for specific content inside of files.
So if you need to get that granular or specific, yes, he's got a solution for that, too.