Canada's central bank, the Bank of Canada, recently put out a report on the risks and benefits of a central bank digital currency.
"An anonymous token-based central bank digital currency (CBDC) would pose particular security risks," the Bank of Canada wrote in its Oct. 5 report. "These risks arise from how balances are aggregated and stored, how CBDC is used for transactions, and how various solutions such as e-wallets, crypto exchanges and banks compete to attract users."