Brian J. Davis - Appraiser - Bloomington / Normal Illinois Real Estate Appraisal Services

The best one can do is reduce the opportunity for identity theft. The following fall under the category of common sense and nothing more:

Remove your license number from your business card (if legally permissible).
Remove your license number from your stationery (if legally permissible).
Remove your license number(s) from your website and e-mail stamp (if legally permissible). This includes removing the actual image of your license.
Remove your license number from websites that advertise your services (if legally permissible).
Stop sharing your software signature codes with everyone in the office.
Stop taping signature codes on the wall next to the computer at the office.
Try using something a little more complex than “appraiser” for a password.
Eliminate your E&O declaration page from your website.
Be more circumspect about who has access to your license.