Is it still good practice to reinstall everything after you are owned?

[rooty at nigge.rs (How Rude !)]

> rooty arfspoop at protonmail.com
> Wed Nov 1 09:15:16 PDT 2017
>

> winblows is a virus
>
Not true.  It is a botnet.

Also:
blackhat.com/eu-17/briefings/schedule/#how-to-hack-a-turned-off-computer-or-running-unsigned-code-in-intel-management-engine-8668

JS;DR:
All computers are fucked.