It is a requirement of the University of Otago that all computers connecting to the University networks have up-to-date antivirus software installed and working.
University-owned computers will use Microsoft Defender Antivirus and this will be managed by ITS. For personally-owned computers, Windows 10 and 11 come with Microsoft Defender Antivirus; other operating systems such as Mac and Linux will need to have a separate antivirus software application installed.
You should only use one licensed antivirus software application on your computer. Using multiple antivirus software applications will not increase security and can reduce your computer's performance significantly due to conflicts.