Simple: make the person who falsely signed such an order as a representative of the company personally responsible for their wrongdoing, i.e. jail such a person.
That still requires you to prove your innocence after getting cut off from the internet. Make them go through the courts for every single case. Make them accuse you first, before the punishment, so that you can defend yourself. That’s the whole point of due process.
Simple: make the person who falsely signed such an order as a representative of the company personally responsible for their wrongdoing, i.e. jail such a person.