C-cex.com Scamed their customers with SSD. As far as I know, about 20 btc worth in SSD has been "lost" . Just to tell you guys, be carefull with this exchange ! Scam alert !
Don't trust C-Cex, they created their own coin called Join Coin and scammed people out of ICO money.

this is the image of the Join Coin dev answering questions in the C-Cex thread as a C-Cex dev. Took lot's of their customers money. Oh and this happened like the day BEFORE SYS was launched.