Meltdown and Spectre are two recently discovered vulnerabilities that affect many computers.
https://meltdownattack.com You have a Mac if I recall correctly, so you have an Intel chipset and are affect by both Meltdown and Spectre. Meltdown has been patched in recent versions of the Linux kernel, although unfortunately it will slow down your machine a bit. There is no patch for Spectre at this time, but it can be mitigated. You can install a more recent kernel from jxself's repo. https://jxself.org
