I can see how this would be. I've been in the unfortunate position of receiving very confidential financial documents, which I could have done a lot of damage

I can see how this would be. I've been in the unfortunate position of receiving very confidential financial documents, which I could have done a lot of damage with. Most times I have sent a friendly "this is not the person you think it is" type reply, but with automated systems, this is impossible.