As the person with the CIO job, one of the things that takes up a lot of  your time is trying to keep the company’s valuable data and knowledge  safe because you understand the importance of information technology.  

You try lots of different ways to make this happen: you install  firewalls, you require everyone to change their passwords every 90 days,  and you make sure that everyone has been trained about the dangers of  phishing. However, in the end, it just might turn out that your greatest threat doesn’t come from the outside. 

Rather, the people who work for your company might be the ones that you have to guard against.