We've looked at , , , and and conclude the series by speaking to security experts about the problem of internal excessive privilege.

Whether it's a system administrator with complete access to servers and data or an executive who retains excessive access rights after changing roles, these people could pose an internal threat if they turn against the company.

For example, employees could find themselves locked out of their own networks while customer data files vanish, trade secrets get stolen or company funds are siphoned out of the business.

IT admins gone wild: