Weak API authentication in Laravel can expose sensitive data and compromise application's security.
Common pitfalls in API authentication in Laravel include misconfigured authentication guards, insecure API token management, and lack of multi-factor authentication (MFA).
Best practices to secure API authentication in Laravel are to configure authentication guards properly, implement secure API token management using Laravel Sanctum, and enforce multi-factor authentication (MFA).
Regularly conducting vulnerability scans is essential to ensure robust API authentication in Laravel.