Keep your customer information more secure by leveraging the same user authentication system used by Amazon.com. Login with Amazon is based on OAuth 2.0, which has been broadly adopted for user-authorized exchanges across sites.
Query strings and URL fragments in Login with Amazon responses
Using the Login with Amazon WordPress plugin
One of many plugins available to help you integrate Login with Amazon into your website is the plugin for WordPress, allowing content creators to use their Amazon credentials to log in, giving them one less ID/password combination to remember. Learn more