Be careful, guys. When engaging this kind of services, never share your private keys.
This is a new account. If you intend to offer this service legitimately, you should consider escrowing a certain amount of bitcoins with a reputable escrow provider. If you don't agree to this, you must be deranged if you think people will blindly send you their wallet files with 10+ bitcoins on it.
Yeah we must carefully for anything like this. honestly this is a brilliant idea for trapping a confused people because when people confused, the only in their mind is how to recovery their wallet maybe they will give private key to other people and that's same like they give it their money.