Yup, Yobit is one of the worst exchanges.

Waves DEX is solving these troubles for everyone in crypto-land.
Exchange on the blockchain, trades only happen when they are filled, nobody can steal or touch your coins (unless you share your private key, but that's never a good idea, haha).

http://Tidex.com is doing well too, first exchange I ever noticed you can actually us a pencil to draw in the chart diagrams.