Security Loophole on Mac OS High Sierra
A serious security loophole in Mac OS High Sierra (10.13.x) was announced on November 28., 2017. This potentially affects many UiB users' work and home computers.
Apple has since released a security update fixing the loophole. This update is installed on Macs with version 10.13.x. See more information about it on https://support.apple.com/en-us/HT208315.
Previously given information about a security update from the IT division is no longer valid.