some years ago it was unthinkable to manage a battle remotely, now it is common practice. This job changes too.
In any case the same issues you have in a regular company also exists in the upper echelons, no reason you can't give them technology that is encrypted and easy to use. That doesn't mean they are supposed to use Signal though
This is a fucking job with requirements.
It's like being a doctor and ignoring the "do no harm" part.
This is a job where people get killed, sometimes in large numbers.
If a clown is at the helm, they are liability to them self and others and should be... forcibly removed.