@clemens, would you mind to elaborate more on that? To the best of my current knowledge, I do not see the background for such a strong claim – as of now... Having said that, I do not want to say that I consider myself really well informed re: Zen, at least not continuously; and in the same time, I have some reasons for what I am curious what is going there (I do not currently have any account with them, it's a different reason – I can explain in the PM if you like).Zen is very risky to use. I would avoid them at any time.