The University requires that all computers connected to the University's network via ethernet or Wi-Fi be using up to date anti-virus software.
Yes, Apple macOS computers are susceptible to malware and viruses. So this requirement holds true for Mac users.
There are several free anti-virus packages for macOS: the one UD recommends is avast.
Download the software from the avast website.
Follow the directions at the avast site to install, set up automatic updates, and use the software.
For assistance, contact the IT Support Center by calling (302) 831-6000, emailing email@example.com, or submitting an online help request form.