January 5, 20251 min read
Authentication Best Practices in 2025
Modern authentication strategies for web applications including OAuth, magic links, and passwordless authentication.
Authentication is critical for any web application. Let's explore the best practices for implementing secure authentication in 2025.
The Evolution of Auth
Authentication has evolved significantly:
- Passwords - Still common but increasingly problematic
- OAuth/Social Login - Delegating auth to trusted providers
- Magic Links - Passwordless email-based authentication
- Passkeys - The future of authentication
Implementing OAuth
OAuth allows users to sign in with existing accounts:
// Using Better Auth
import { betterAuth } from "better-auth";
export const auth = betterAuth({
socialProviders: {
github: {
clientId: process.env.GITHUB_CLIENT_ID!,
clientSecret: process.env.GITHUB_CLIENT_SECRET!,
},
google: {
clientId: process.env.GOOGLE_CLIENT_ID!,