Thanks
I had an old Bitcoin wallet that I had completely forgotten the password and I only remembered a couple of letters,and provided to the wallet recovery services here in the forum what I knew and he was able to crack the password in two days.Unfortunately I had confused that wallet with another and it had no Bitcoin in it,the cost of recovery is 20% fee for the service provider.He can crack also other wallets I think which use the same algorithm.Yes he cracks a lot of wallets until now the list has grown dramatically.
You have the thread here,trying does not cost anything and I am very impressed by his service
https://bitcointalksearch.org/topic/bitcoin-wallet-recovery-services-for-forgotten-wallet-password-240779