Banking mode is designed to secure your online banking. When you enable Banking mode, Online Armor will only allow your computer to connect to Trusted or Protected websites. This ensures that you (or your computer) cannot be tricked into visiting a fraudulent website designed to steal your login information, and that your computer cannot send information to any other sites.
Bank site learning mode allows you to setup the protected sites in Banking Mode in paid versions of Online Armor. Because banks often use a lot of weird domains and subdomains that never show up in the address bar it had in the past been difficult to setup banking mode.
In "Websites" add the main domain of your bank (e.g. www.commbank.com.au ) as a protected or trusted site. Then, right click on the entry you made and choose "Learn". Online Armor will open the OABrowser, and go to your bank site. Briefly use your bank site - log in and visit the areas that you would normally - and Online Armor will record all of the sub-domains that are used.