Now we know the 2 security issues happened in the history of Poloniex exchange. Despite of those two cases there were no an other single incident. I see Poloniex has successfully recovered and it's a very reliable exchange now.

That is true because now poloniex is different than before . Recently i have just applied for KYC i think we should not use any exchange without doing KYC. Anyway thanks for this great post. Good day..