Honestly, I think it would be sensible to have a software engineering licensure, though it shouldn't be required for all developers or development. I'd say something like an engineering stamp would be pretty reasonable for anything requiring encryption, financial data or transactions, health data, etc. And that's not to say that developers couldn't work on it, but just that a licensed software engineer should be in responsible charge of their work to ensure that it has been performed according to best practices and standards.