People don't actually need to pay attention to that. Most banks in the European Union are already watched and have regulations up their collective funnels to avoid exactly these kinds of problems. The only mitigation strategy neccessary is to split your cash assets in multiple accounts...

And of course, if you partake in a well-functioning state, which protects your rights against all sorts of problems, educates your workforce, regulates your food and healthcare, you might consider the taxes a bargain.