someone who has access with quantum computers may try this decrypting the pw.
technically, you don't decrypt a wallet file password but you brute force it which is totally based on luck and the length/complexity of the password.
but first, is the wallet.dat file circulating the real one? i guess just as fake as it can be.
I am sure the wallet file is fake and all this article is just bs. Just take a look at the photo they posted, the member who shared the file is a newbie on that hackers forum. Why should any one trust him knowing that there is no way to tell for sure if the encrypted private key is the one for the address holding that money.