You only heard of Intel , Did you know even AMD and ARM microprocessors have a critical flaw too

Spectre forces an application to share its secrets, and is a more difficult attack to pull off.It affects Intel, AMD, and ARM processors on desktops, laptops, cloud servers, and smartphones.

Meltdown allows user applications to pilfer information from the operating system memory, as well a secret information of other programs. Most Intel processors since 1995 are affected by Meltdown, with the exception of Intel Itanium and Intel Atom prior to 2013).

For More:
https://www.darkreading.com/endpoint/critical-microprocessor-flaws-affect-nearly-every-machine/d/d-id/1330745