Technically, there are countries that will potentially put you at risk when they found out you are trading bitcoin or you own them. In my country, some of my bank account is in potential risk because if they found out then they will close of my account and I'm not able to cash-out using their service again. The worst is in other countries that you could be jailed using bitcoins. And another risk is losing all your wealth if only ever you became hopeless of btc's price from its all time high that you bought and sold all of it.