For the accountant or attorney who has a copier without these features, you really need to see how much that feature would cost to add and if it is not on your machine, and cannot be put on there, I would say it is time to look at a new device which has this on there. When we are dealing with our customer’s sensitive data, it is our responsibility to do everything we can to ensure we are able to retain their trust.
Xerox, Kyocera, Lexmark, and most major manufacturers these days offer this feature, but you may have to pay extra to get it. A lot of folks aren’t aware this is a identity theft risk, so they choose not to purchase this option. For fields like accounting, taxes, law, and medical, it seems the risk is too high not to pay a few hundred bucks to protect your valued clients.