Editor's Note: This report was produced and originally published by Threat Lens , Stratfor's unique protective intelligence product. Designed with corporate security leaders in mind, Threat Lens enables industry professionals to anticipate, identify, measure and mitigate emerging threats to people and assets around the world. The rise of the internet has greatly increased the risk of cyberthreats from within. Whereas stealing data before might once have involved photocopying reams of pages, a bad inside actor now can make off with vast troves of digital data with just a few clicks. The threat of data exfiltration by malicious insiders keeps many leaders up at night. But there are practical techniques for reducing the risk of insiders exfiltrating data. Four sets of controls are relevant to this task: Classify, Control, Block and Visibility. Classify Data The first step is to classify an organization's data in some way.