Just a week ago, Google and a few other security research firms disclosed two major chip flaws. The first one which only affected chips made by Intel was named Meltdown and the second one which left computing devices using AMD and ARM chips vulnerable to hackers was named Spectre. These two major flaws had left a lot of devices vulnerable, including smartphones and PCs.
To remedy these flaws, Apple has released iOS 11.2.2 and macOS 10.13.2 for there devices. The iOS 11.2.2 update has been made available for iPhone 5S and later, iPad Air and later, and the iPod Touch 6th generation. This update comes with a security patch for Safari and WebKit to mitigate the effects of the Spectre vulnerability.
To get the iOS 11.2.2 Over-The-Air (OTA) update you will need to go to Settings of the device, after which you have to go into the General tab, in which you will need to tap the Software Update tab and follow the instructions. It is recommended that you take a full back up of the device before updating to a new software version.
The macOS 10.13.2 supplemental update includes a security patch for Safari and WebKit to mitigate effects of both Spectre and Meltdown. Alongside the supplemental update, users will also be getting the Safari 10.11.6 update. The Safari 10.11.6 update is also available for OS X El Capitan 10.11.6 and macOS Sierra 10.12.6. To get the macOS 10.13.2 Supplemental update, users need to visit the Mac App store and follow the instructions given there.