iCloud’s two-step authentication is back up and running today. Apple is forcing users to create new passwords for apps that don’t support two-factor authentication. If you’re signed into such an app, you’ll be signed out at some point today and forced to create a new, unique password. Apple will guide you through the process if you want to get ahead of the game if you’re not already signed into an app that doesn’t support Apple’s two step-step process, Apple says.”]
Source: https://gizmodo.com/you-need-to-create-unique-passwords-for-third-party-app-1644219130