There are new security patches for Windows and Linux kernel affecting the x86 cpus. It seems that hardware security flaw in Intel CPUs allows some programs to read other parts of the memory not used by them allowing to copy data from other programs even passwords and accounts.
This new security fix comes at the price of reduced performance up to 30% depending on the program. In the same time AMD are trying to exclude their processor from this patch because their processors doesn't have this issue.
Sources: Techpowerup
