I read about this on cointelegraph few days ago, the wallet could be real. But, it is now related to the fact that without know the private key of a wallet, that brute forcing can only be a waste of time as no one can brute force a wallet private key for now. Also, on the new, it is said that although it may be impossible to break through the wallet for now but possibly quantum computer with advance features will be able to break through in a way the private key will be revealed. Now that a recent quantum computer is used to calculate what can not be calculated in 10 years in just three minutes, this makes quantum computer to be a topic of discussion in relationship to bitcoin.