The Royal Bank of Canada (RBC), Canada's largest bank, has terminated its Chief Financial Officer, Nadine Ahn, and the involved employee after an investigation revealed an undisclosed personal relationship between them, leading to preferential treatment including promotion and compensation increases for the involved employee. Katherine Gibson has been appointed as the interim CFO effective immediately, following Ahn's departure. This decision comes at a critical juncture for RBC as it embarks on integrating its $10.1 billion acquisition of HSBC's Canadian business, marked with the stock symbol $RY.