Software engineering leaders often face the decision of whether to build an authentication system in-house or outsource it, with significant implications for speed to market, security, maintainability, and cost. Developing an in-house authentication system might initially seem advantageous for customization and control, but it carries risks like delayed product launches, increased vulnerability to security breaches, and higher maintenance burdens. Outsourcing, on the other hand, can expedite development, reduce liability in case of breaches or outages, and leverage the expertise of specialized providers, though it may involve ongoing costs and less control over features. Considerations such as the scalability of costs, the potential impact on company reputation, and whether authentication aligns with the company's core competencies are crucial in making this decision. Ultimately, leaders must weigh these factors to determine the most strategic approach for their organization.