Please everyone, stop writing your own user authentication code

This article argues that developers should stop writing their own user authentication code due to the complexity and security risks involved. It highlights how building a safe authentication system is difficult and mistakes can have catastrophic effects. Instead, it recommends using Identity-as-a-Service solutions like Auth0, Azure AD, Okta, and Google Identity Platform, which offer advanced security features such as multi-factor authentication (MFA) and benefit from large-scale data to detect and prevent attacks. The article emphasizes that these services save development time and are significantly safer than custom solutions, making them a best practice for modern web app development.