in the situation that is happening now, I think it is dangerous to trade on any site including the binance and Bitrix) but there is a very good security on Bitrix and it is very happy. polonich is also a good option)
Why you think Binance is dangerous to trade which is one of the most used exchange by crypto community for trading purpose.
Poloniex is the exchange need to avoid for now since they have lot of accusations were still open about them.
Poloniex has got a bad view at the moment. The reference to be a good and quality exchange platform is binance and bittrex. Both have good quality levels and have excellent service.
Trading in the exchange will give us comfort and security. Never try to trade in an exchange that has a bad reputation, let's think carefully and we will get satisfactory results too.