Why Social Security Organizations Should Resist the Do-It-Yourself Tech Temptation Introduction Public social security institutions increasingly face pressure to modernize their information systems while controlling costs, improving service delivery, and maintaining compliance with evolving legal frameworks. In this context, some organizations consider developing enterprise software internally, often motivated by dissatisfaction with past vendors, perceived loss of control, or the belief that in-house development will be cheaper and better aligned with institutional needs.  However, extensive academic research in software engineering, information systems, and public administration suggests that large-scale, mission-critical enterprise systems are among the most difficult and risky categories of IT projects, particularly when developed in-house by organizations whose core competencies lie outside software engineering. Over time, internal development efforts frequently result in costs that equal or exceed commercial alternatives, while exposing institutions to substantially higher operational, technical, and governance risks.  This essay argues that the decision to build enterprise social...