In my opinion, the risk in investing bitcoin is so small. Because you bitcoin price is increasing even is unstable. Yes sometimes bitcoin price decreases, but most of the time bitcoin price increase. Over a month it increase to 20-30%. If that case a long term of investment you will earn plenty of money.
true, any investment must have risks. either because it was stolen or lost. all we can do is improve security. and in my opinion, if we can really keep a wallet, bitcoin is one of the safest investments