If Google Mobile Device Management has been implemented in your organization, then you may be getting a security error when you try to use certain google services like Gmail or Google Drive. The following instructions will resolve the issue:
On IOS devices (iPhone/iPad)
Download Google Device Policy from the App Store (Free)
Run the Google Device Policy app and download the profile (you should use your company email address and password if prompted)
Open the iPhone/iPad Settings, select Profile and install the Google Profile
This should resolve the issue.