The primary reasons cited for this are: lack of security and privacy of consumers' personal data including credit card number, identity theft, virus, break-in attacks, denial-of-service, etc. An identity thief steals key pieces of personal information and uses it to impersonate someone and commits crimes in his/her name and it is regarded as the fastest growing internet crime today. The ability to know the identity of the person or the business enterprise with whom doing business is important.