"We're dealing with two serious threats.
The first is isolated to #IntelChips, has been dubbed Meltdown, and affects virtually all Intel microprocessors. The patch, called KAISER, will slow performance speeds of processors by as much as 30 percent."
"The second issue is a fundamental flaw in processor design approach, dubbed Spectre, which is more difficult to exploit, but affects virtually ALL PROCESSORS ON THE MARKET (Note here: Intel stock went down today but Spectre affects AMD and ARM too), and has NO FIX."
"Spectre will require a complete re-architecture of the way processors are designed and the threats posed will be with us for an entire hardware lifecycle, likely the next decade."
Get the difference between Meltdown and Spectre:
Meltdown: Intel only, easily exploitable, patch causes up to 30% decrease in performance
Spectre: EVERY processor since a few decades (including AMD, ARM, etc), not easily exploitable but NOT fixable
@angristan I have already embarrassed myself getting those two mixed up ;(