Recently Google Project zero found security flaws in CPU which affected by major CPU producers like Intel, AMD and ARM. Meltdown and Spectre can help the hackers to access the information which CPU can store and process. The information like username passwords and other important data on your iPhone, iPad and Mac. Meltdown and Spectre bugs affected by all the gadget running with the Intel, AMD and ARM CPU. This security bug majorly uses your Mac, iPhone and the iPad browser like safari chrome, Firefox to access your CPU data using the malicious App.
This security flaw was there for more than 15 years in all the major CPU producer, fortunately, the researcher found recently. But it is not easy for hackers to hack using Meltdown and Spectre because this requires installing a malicious app on your system to work. Then only the hackers can access what your CPU process the information. There are no information or data on hackers who was used this CPU security flaw to hack information of the people data. But all major companies like Apple, Windows are now taken the step to fix Meltdown and Spectre Bugs by giving the update to their browser and OS.
How to Fix Meltdown and Spectre Bugs in iPhone, iPad and Mac
When Apple came to know about CPU security flaws on Intel and ARM. They said that they are going to release the security update soon to their affected devices to Fix Meltdown and Spectre Bugs. And the update now is out for the iOS, macOS and tvOS. Apple watch CPU not affected by this security issues.
On 8th Jan 2018, Apple Released iOS 11.2.2 and macOS 10.13.2 update to fix Meltdown and Spectre Bugs for their Intel and ARM-based CPU. Apple patched security content to their latest update to fix this issues. Apple recommends to all their users to update their OS to the latest to fix Meltdown and Spectre Bugs issue. To check more info on security content update using below link.
https://support.apple.com/en-us/HT208401 (iOS 11.2.2)
https://support.apple.com/en-us/HT208397 (macOS High Sierra 10.13.2)