Absolutely not. It would be stupid to do anything illegal. Switzerland has a rule of law: The government can only do what the law prescribes. The government is forbidden from doing anything else. You can only be fined or otherwise punished if the code of law says so. It also means that a government employee has no discretion. Everything he does is prescribed by defined processes. You can observe this every time you interact with the state. And the government employee is not allowed to do anything else. If he observes a crime, he can alert the authorities, of course. But there is no crime here, and nothing illegal. We are only taking actions that are allowed, for which there are no fines and no legal consequence whatsoever. We are simply trying to find a legal way to protect our savings from undue taxation.