Please proceed to https://www.usa.canon.com/support or click on the Affected model link above to navigate to the latest firmware. Once here, change the Type filter to Firmware and download and install the latest version.
Furthermore, if you have not done so already, we recommend that you set up a private IP address for products and create a network environment with a firewall or Wi-Fi router that can restrict network access.
In addition, please check “Regarding security for products connected to a network” in the URL below for other security measures that can be used with your Canon products.
Canon U.S.A., Inc.
Get personalized support via My Canon Account. Access your account, or create a new account, click here to get started.