Hackers exploit security vulnerabilities in programs, apps and operating systems, and you must therefore make sure that they are kept up to date.
All AU computers (PCs and Macs) are updated automatically. However, you are responsible for updating the programs you have installed yourself and the browsers you use.
Linux users need to update their computers themselves.
If you have an AU smartphone and/or tablet, you must update the operating system and apps yourself. AU IT is working on a solution where AU smartphones/tablets will be updated automatically.