Kigen's Anti-Cheat

There's a few questions I would like to know about KAC.

First... I have a friend in my clan that is vac banned, and hes a good friend. If hes vac banned and i make my server insecure with KAC can he join?

Second... I wanted to know if global KAC bans happen right away, or if there's a waiting period like VAC?

Im adding this plugin to my server btw cheers

KAC global bans can only originate from trusted servers. All other servers only read.

KAC and VAC are two different systems.