Desjardins, Canada’s largest federation of credit unions, will convert its card accounts to the Optis processing platform operated by Fiserv. The cooperative owns a portfolio of 4.5 million Visa and Mastercard credit card accounts and is Canada’s fourth largest credit card issuer when measuring outstanding receivables. It had been handling account processing in-house. No timetable has been provided for the conversion. Desjardins will also use the Optis platform for its loyalty program capabilities and AI-based fraud-fighting technology. Optis manages more than one billion credit card...