Why 'Login with Google' is Safer Than Rolling Your Own Auth

When you're building an app, there's a tempting thought: "I'll just build a simple login system. How hard can it be? Email, password, maybe a database table."

It sounds simple. It's not. Authentication is one of those problems that looks easy on the surface and hides an ocean of complexity underneath. The "Login with Google" button isn't lazy — it's smart.

What "Rolling Your Own Auth" Actually Means

When you build authentication from scratch, here's what you need to handle:

The Obvious Stuff

• Accept email and password
• Hash the password before storing it
• Compare hashed passwords on login
• Create and manage session tokens
• Handle "forgot password" flows

The Less Obvious Stuff

• Use bcrypt or argon2 for password hashing (not SHA-256, not MD5)
• Add salt to password has