Please do not overestimate the risks. Even if the shares remain in your possession, at least you will be able to make investment decisions in the stocks you trust, which you will know at a later point in time that you will come to the cost of your own. The stock market is definitely not a gamble and gambling area. If you are going to lose years of accumulation, then their compensation may not be as easy.
Unfortunately, this type of transactions can be experienced in all world stock exchanges. Controllers like SPK do not have much to do. They are trying to protect investors by putting some measures in place and punishing the manipulators they detect, but that is not enough. Nevertheless, similar processes are continuing. You will protect yourself.