Monitoring & Controlling Access to Prevent 3rd Party Data Exfiltration

The recent data breach at the Office of Personnel Management (OPM) demonstrated how dangerous improper third-party access can be to an organization. Even with all of the right security tools in place, you are only as secure as the third parties that have access to your network. So where do you set the threshold for access? How do you know what access is normal and what is not? And how can you catch improper access before it impacts your business?