Many people believe that electronic wallets are safe, but in fact, Bitcoin accounts and trading floors are frequently hacked.
True, these kind of wallet is not literally safe to store bitcoin or any other coins, that why you dont have to put all your bitcoin in one wallet alone try to separate them or for added protection store all your bitcoin to an offline wallet.
If you are afraid that your bitcoin whos at the hands of a trading or web wallets might be hack then go offline wallet. Offline wallet are the safest when it comes to storing large amount of bitcoins.
As there is no regulatory body that guarantees a Bitcoin number to a person, it is very difficult to retrieve it if lost. If stolen, there is no hope. Such attacks are ongoing.
This is why the government wants to regulate bitcoin, they want to protect the investors from such acts. The government cant push the owners to pay its user when things like this happen because its not regulated.