Information technology has become embedded in almost every area of modern life. The many complex digital systems that support modern societies are now highly dependent on the correct function of complex and highly interdependent technological systems. Digital tools are increasingly becoming part of traditional crisis response efforts by government and nongovernment organisations. While digital tools have substantial capabilities to enhance crisis response efforts, they also pose significant

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... s to user communities when deployed in timesensitive, vulnerable and fragile crisis contexts -as part of an already complex system. These risks and inefficiencies have been demonstrated in the contact-tracing application debate in the response to the COVID-19 pandemic. Technology must be intentionally designed and implemented, both to help solve the problem at hand and support end user communities. The principles of simple, secure and survivable systems (S4) offer a framework for technology that serves the interests of end-users and maintains human dignity, especially in crisis situations. The S4 principles are already evident in a number of technology projects, across research, design, build and deployment phases. Instead of high-risk, ad hoc, reactive digital solutions, crisis responders can pre-emptively share information, invest and work with existing technology design and development experts that reflect the S4 principles for efficient, effective solutions that enhance response capabilities both now and in future scenarios.