In response to Spectre and Meltdown, the two mega vulnerabilities which could leave your device exposed to hackers, Apple has rolled out new updates for macOS and iOS devices. The updates with macOS High Sierra 10.13.2 and iOS 11.2.2 are meant to mitigate the threat posed to your Macs, iPhones, and iPads. We recommend updating your devices as soon as possible.
To Update Your Mac:
1) Go to the App store
2) Click Updates
3) Select Update for macOS 10.13.2
To Update Your iPhone or iPad:
1) Go to Settings
2) Select General
3) Select Software Update
4) Download and Install iOS 11.2.2