BTC is a high risk speculative asset. A BTC investor should know it.
Investors have risk that the price declines, however investors should not bear risk that their assets get stolen from the entity responsible holding them.
Who said that investor should take one risk but not the another? Who is primarily responsible for the risk of your cash not stolen from your pocket? Investor takes all risks, but clever investor evaluate risks against the possible profit and is not blaming others afterwords.