I am trying to find out something about this Meltdown vulnerability affecting, in few words, all Intel processors. According to what I have read, Microsoft has launched a fix via Windows Update, but I have also read that fixing the vulnerability will decrease the performance of the processors. I have alse read about Intel updates, Firefox updates...
First question: what kind of problem is this? Hardware design? Software design? The fix is done through a OS update, or specific programs such as web explorers need...?
My conclusion is that, in a few weeks, when theses updates are spread, suddenly most computers in the world (at least home computers) will be slower in 2018 than they were in 2017. Is this true?
If so, is this one of the biggest security and performance milestones in computers history?
Thank you all who are able to cast light on this Meltdown matter.