I am aware.
Anything can happen, and I always advice anyone to invest only the amount of money they afford to lose.
Genesis and HashFlare are here for some good years. I am new in Crypto, and I admit I was very skeptical.
Their business model is clearly in favour of them. They invest in mining hardware, start to mine for themselves, then by selling this hashpower to users, they already have most of their investment returned.
Plus, after one year (the contract duration on HashFlare) they remain with the hardware. It won't produce that much after one year but they for sure will reuse it for the same contracts to new users or switch to other coins that are more profitable to mine.
Plus, they are protected in case of investing into equipments that have mined a coin that drops 90% due to.. who knows what security issue is found in the code.
That's why I think these limited contracts are a proof that the company is protecting as much as it can, in order to be able to remain on the market, as a trustful one.
If you catch a good offer of these contracts (with trusted cloud mining companies for years) and the mined crypto is in a bullish trend - you are going to make a better ROI.
Of course you have to consider the difficulty increase.
There are so many aspects. I made that profit estimator for cloud mining mentioned in an earlier post - so that anyone can play with it and make a better ideea of what is possible.
As I said - some day it may come the news like ... NiceHash has been hacked
Or exchanges gets hacked, or closed, or ...
Get informed, study, and again: invest only as much you can afford to lose.