Skip to main content

Microsoft security update may cause issues with certain file types in attachments

graphic for Information Technology Services, white letters on blue background with gold diagonal

Microsoft recently pushed a security update to Office 365 that expands the list of file types that are blocked as attachments. Information Technology Services has learned that this update may result in a small percentage of employees being unable to open attachments containing these file types.

If you experience a problem with attachments from known and trusted senders, please contact the ITS Service Desk at 304.293.4444. We will create a ticket, then have a support specialist contact you for additional details to find a solution that meets your needs.