By now, you've heard about the processor vulnerabilities affecting almost every processor in common use today; those vulnerabilities are called Meltdown and Spectre:
What is the threat?
As a summary, the issues are located at the kernel level of the chips and can lead to leaking running memory outside the current process. Both would enable a hacker to access confidential information such as secret passwords, personal information or photos from desktops, laptops, cloud servers or smartphones.
Contrary to some initial reporting, this is not