Social login is an alternative to traditional user registration and login that major companies like Facebook, Google, Amazon, Twitter, and even LinkedIn have provided as a solution for websites and users to simplify the registration process.

The advantages are clear: It\'s unnecessary to re-enter your personal data on a website other than the one you always prefer. You don\'t have to remember your password, something that seems like a real problem these days given the number of systems we use.

Among its disadvantages: Privacy levels are lower, since each site requires permission to access your social network, leaving you more vulnerable to data theft by these networks. This includes not only your personal information that you have deliberately entered, but also your tastes, preferences, friend lists, and algorithmic relationships that the social network creates based on your behavior within its system.

The win-win situation of the non-contractual relationship between this website and the social network means that your preferences are tracked more extensively, making you the target of advertising campaigns that have become increasingly difficult to tolerate. On the one hand, the website gains higher conversion rates by facilitating registration and simplifying the process for the user-customer, while on the other hand, the company makes its users more dependent. What happens if your social network no longer exists? You will no longer be able to log in to the website because login is determined by the social network session. This means that if you delete your Facebook account or it is deactivated due to the social network\'s policy, you automatically lose access to the login-dependent website. This can be problematic when you have critical services on this second site. As a personal recommendation, if privacy policies aren\'t a major concern for you, you can use it for content websites (blogs, forums, etc.). However, for critical services (electricity, water, video games) where you typically pay subscriptions, it would be ideal to use conventional registration.