Information Technology (IT) has implemented a new line of defense for your inbox. Microsoft’s Advanced Threat Protection (ATP) uses global information to identify and eliminate attachments and mask URLs used by hackers. This additional level of protection will help eliminate known scams and phishing messages. All emails sent to your gcsu.edu address will pass through ATP. If you are sending attachments to one another, sending an attachment to yourself or through the copier, you may experience a short delay as these emails are processed by the ATP system.
ATP is another tool that we have to help safeguard our users and the university. As protections are developed, hackers look for new ways around these services. Users should remain vigilant and wary of messages containing links they were not expecting.
Additional information available here.