It's FOSS - https://itsfoss.com/meltdown-spectre/
Brief: Meltdown and Spectre are two vulnerabilities that impact almost all computers, tablets and smartphones on the earth. Does it mean you can be hacked? What can you do about it?
If you think 2017 was the year of security nightmares, 2018 looks to be even worse. The year has just started and we already have two major vulnerabilities impacting almost all the processors made in the last 20 years.
Perhaps you already read a lot about it in detail on various websites. I am going to summarize them here so that you would know the essentials of these vulnerabilities,