What common mistake do developers make with Personal access tokens, why does the mistake cause problems, and what is the safer approach?

What common mistake do developers make with Personal access tokens, why does the mistake cause problems, and what is the safer approach? One recurring problem with personal access tokens is applying it without understanding the boundary it protects. Treating possession of any valid API token as permission to access every resource in the system. In addition, Sanctum can issue tokens that API clients send with authenticated requests. Safer engineering approach: keep the responsibility in the correct layer, use the framework's supported API, validate and authorize inputs, avoid hidden side effects, and verify the behavior with tests.