Might want to check your Dash balances on Poloniex.
Something rather odd went on with a friend's 110 dash, gone in 90 seconds and sold for BTC, transferred to
https://blockchain.info/address/1Ax9ctEQnG2ZqPbM6Uy37tnZLzH1FbMyB4 which also received more BTC during the day - 2 days ago. If all DASH, that's 30btc dump on Wednesday?

Only Dash got sold and BTC moved, he had other coins as well untouched. Looked like remote connection to his PC, but nothing else was touched .. just 110 dash.
OK this is getting weird now, check 2 day chart on
https://www.poloniex.com/exchange#btc_dash .. red candles and volume spike.