Why is it important for companies to plan for internal threats?

Question: Why is it important for companies to plan for internal threats? 

It's critical to stay on top of developments in your market, the economy, technology, and competitor activity that could jeopardise your market viability. Internal analysis provides crucial data that can help you capitalise on your strengths, anticipate dangers, and keep your company thriving. Internal attacks are rarely reported in the media and are so underappreciated. Because any employee who has access to company data is a security risk.