Leaks of sensitive information have considerably affected our national security and that of corporate IP. Edward Snowden, a contractor for the government, managed to steal documents containing highly-confidential NSA surveillance from his workplace computer. The leaked documents were then promptly leaked to a select group of press. Software systems are not naturally set up in an automated process that perfectly records every shift in data that occurs during the duplication and transfer of restricted files onto a removable device like thumb drives, mobile phones, and external hard drives.”]
Source: https://gbhackers.com/evaluating-the-increasing-risk-of-insider-threats/