Question: What is the purpose of the _security_

In the policies file, a fair few variables affect security, but I couldn’t find it in the simulation file, nor could I find any answers online. Anyone here know the purpose of this variable? Note: if you have a theory, please post it, but include the fact that it’s just a theory, as not to start any false myths.

The security variable reduces the risk of assassination.

I made a Palace mod (available on the Steam Workshop) which increases the security variable greatly.