This vulnerability allows anyone to login to a Mac device and change administrative settings by typing in the username “root” with no password. On November 28th a software developer publicly reported a security vulnerability on Mac operating systems, High Sierra 10.13 or greater. Be Cyber Smart! Open sub-navigation Close sub-navigation.Archived News Open sub-navigation Close sub-navigation.

Blog Open sub-navigation Close sub-navigation.Phishing Alerts Open sub-navigation Close sub-navigation.News & Announcements Open sub-navigation Close sub-navigation.Regulated Data Security Open sub-navigation Close sub-navigation 3rd-Party Security Open sub-navigation Close sub-navigation Data Security Open sub-navigation Close sub-navigation Identity & Access Security Open sub-navigation Close sub-navigation Information Systems Security Open sub-navigation Close sub-navigation University Security Open sub-navigation Close sub-navigation Technology Policies Open sub-navigation Close sub-navigation.Security Considerations for Cloud Services Open sub-navigation Close sub-navigation.Minimum Security Open sub-navigation Close sub-navigation.Risk Classifications for Georgetown Assets and Data Open sub-navigation Close sub-navigation.Security Standards for Georgetown Technology Open sub-navigation Close sub-navigation.Security Standards Open sub-navigation Close sub-navigation.UISO Requests Open sub-navigation Close sub-navigation.Below you can see how much time you should plan on for each of the main steps that you need to take to install High Sierra. If not, that could take a long time to complete. One of the biggest factors will be if you are prepared for the macOS High Sierra update with a Time Machine backup. We can help outline the most likely time you need to complete the upgrade. We don’t know exactly how long your macOS High Sierra update will take since download times will vary based on your Internet connection and based on your device. Plan to set aside a little bit of time for this update, during which you cannot use your computer. If you are already on macOS High Sierra and just need to install the latest release like macOS 10.13.5, it will take at least 20 minutes to install. It will take longer to upgrade from macOS Sierra to macOS High Sierra. One of the most common questions is, “how long does the macOS High Sierra update take to finish?”

The macOS High Sierra update is large, and you may see an even larger update size if you are not coming from macOS Sierra.

The new macOS 10.13.5 update is smaller and more focused, but it still takes a while to install. If you’re prepared, the new upgrade shouldn’t take too long to install on your MacBook, MacBook Air, iMac, MacBook Pro or other Mac.Īpple’s High Sierra update first arrived in late 2017 with plenty of new features for your Mac. The macOS High Sierra update is big, but the longest part of the upgrade is the installation for most users.

Sierra for mac