The privacy of health information is a subject of great sensitivity in both Canada and the United States. As a result of public demands for more effective protection of such information as medical records, Canada and, particularly, its provincial governments, have implemented extensive legislation. The United States, on the other hand, has largely confined its efforts to private sector initiatives that are more reflective of voluntary codes than legal statutes. Because new technologic developments facilitate data sharing in the medical field, especially in the face of a continual reduction of healthcare budgets, the concern for privacy protection in this domain has intensified. Correspondingly, there has been a gradual theoretical shift in protective health information policies on both sides of the border. As Canada pushes to extend its federal and provincial legislation to the private sector, the United States is on the brink of approving a national bill that would protect the privacy of personal medical records. It is becoming evident that efforts to secure the privacy of health information in both countries are converging.