Private key is a prime factors in online virtuality or cryptocurrency because one if lossing anyone private key in mew wallet he might lost all.my friend lossing his private key hence he lost of all his altcoins, some ETH.
I also very much agree with the Private key is a prime factors in online cryptocurrency or virtuality therefore should be able to keep the fingers that are not responsible for, and do not let anyone else know then we could lose the entire hard results During this