For many years, the Bank of Canada successfully responded to occasional eruptions in counterfeiting by improving the security features on bank notes. The surge in counterfeiting that occurred while the Bank prepared to launch the Canadian Journey series, however, reflected increasingly rapid advances in computer technology that were changing the counterfeiting environment. The article describes these and other challenges that affected the new series and describes how the Bank developed a comprehensive new approach to its currency program and incorporated the valuable lessons it learned from these challenges. Designed to combat counterfeiting and meet the needs of the public, the new strategy includes increased research and development on new bank note security features, an intensified focus on retailer and public education, and a focus on law enforcement.