Protecting privacy online

A recent article in Business Week stated that that “studies have shown that 87% of the U.S. population can be uniquely identified via only a date of birth, sex and five-digit residential zipcode.” In countries like Canada, postal codes can pin point geographic targets with even greater precision than zip codes (in many cases, to the specific portion of a specific street). This suggests that Internet users, whether Canadian, American or otherwise should be very careful about disclosing any personal information to websites if they are concerned about retaining their anonymity.

Another concern is the increasing number of services offered by search engines such as Google which require users to log in. Its probably best to log out after any such use in order to reduce the risk that search queries will be logged.