I would never ever trust any single penny on exchange sites. After that insane incident that happen a few days ago i cant imagine the losses people had to face. And i know some people say that users on GDAX should have $5 million in assets to invest but come on.. I 70% or more people on GDAX dont own that much in assets. Any way some really sketchy stuff going on crypto exchange sites although there are some that i really like such as bittrex and kraken although i dont use them that often.