That is really bad luck for you Condoras, however, you have so much experience why you just lend 0.215 BTC to someone without collateral by the time you are here you should know that accounts are hacked and sold each day!

The owner of the hacked account should prove that he really got hacked i saw it so many times that someone pull out a big scam and then just claim he got hacked to get his trust rating removed!

Anyway hopefully you will recover from this lost money quickly enough, but take it as expensive lesson now you will be extra cautious when you lend money in the future.