Good question @hananova :)

You can't :)

Don't trust anyone with your bitcoin.

Even if they had contact information, MT GOX did too ;)

But i treat this like gambling, and i do like to gamble :)

For in life, there is no great reward, without great risk.

Often i will chuck 50 bucks in the pokies.. the odds of winning something are probably about 1:10 give or take.

I give this system about 50/50 of making me money - It can either pay, or run away with my money.

The payout could be 10X what i invest, or even more with the rising price of bitcoin.

So i am willing to throw in 50 or 100 bucks and give it a whirl.

I think that's how people should look at these systems. It's a real shame when people get greedy and start throwing in huge amounts of money they can't afford to lose, or start borrowing and getting mortgages etc.

Me personally, i think these online investment platforms have huge potential, we are just in the wild west days of scams, shams and flim flams.

My prediction is in the next 2 years we will see an influx of legitimate investment systems run on smart contracts or run by reputable companies, and a new multi billion dollar industry will be born :)