Thanks for the reply.
"It is most likely that such feature will not be accepted as it is quite heavy and difficult for regular users to complete just to upload several files for their website. "
part of the idea is that you don't have to enable this feature if you don't want it. as same with Phone verification in gmail for example. in gmail you can disable/enable the Phone verification...
I do not think that because not everyone wants it then you should not develop it.
I'm sure there are others who would be happy for this feature and maybe even want to pay for it.
But if you will sell it (after the decision to develop it) then please give it to me free because I suggested the idea
About my side, I'm not worried. I do not store my passwords on my computer and not using windows for logins..
I worry about your side (Because I'm not really familiar with this server) - do you do everything to secure your server?