You've heard of data leakage, but what about data seepage?

That's when your desktop applications are set to connect to your internal mail server or shared folders -- for instance, when you boot up your machine -- and your corporate network is then exposed to a targeted attack.

"Data seepage is one of the things that most good sys admins or network admins know about, but it doesn't have a name or they don't realize it is a risk," says David Maynor, CTO of Errata Security. "It's a problem at the application level."

It's all about just how chatty your client machines are. And with the rise in targeted attacks and mobile enterprise users increasingly working off public WiFi connections while on the road or in the coffee shop, data seepage gets riskier.

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— Kelly Jackson Higgins, Senior Editor, Dark Reading