About three years back, Google put a bigger lock on its doors and improved sign-in security access for all of its services. That lock was (and is) OAuth 2.0, which is very specific about which third-party apps it allows access to. Think of this protocol as a big burly bouncer guarding the smarts of a computer. Only with its say-so can you share information from your Google account with third-party applications or websites. That’s why when you try to sign in to a Google tool with any other app (e.g. a mail app on your phone or an RSS reader), you get…
Read the full article: What to Do When Google Prevents Sign-In Access to Third-Party Apps
