In 2025, mobile money transactions exceeded US$2 trillion globally, according to the GSMA’s State of the Industry Report on Mobile Money 2026. The milestone reflects how deeply digital financial services have become embedded in everyday economic activity, particularly in markets where mobile technology has expanded access to financial services.
For African fintech companies, growth on this scale presents both a commercial opportunity and an infrastructure challenge. As more customers, businesses and institutions depend on digital payments and technology-enabled financial services, expectations around reliability, security and performance become increasingly demanding.
At Service Cops, these developments are particularly relevant to the wider conversation about how African technology businesses can develop solutions capable of supporting long-term growth.
An effective digital platform must do more than deliver a seamless user experience. The systems supporting it must also be designed to manage risk as technology, transaction volumes and operational requirements evolve.
Security as a design consideration
In product development, commercial priorities often centre on functionality, speed to market and the ability to respond quickly to customer needs.
However, decisions made during development can have significant security implications long after a product is launched.
Speaking during Service Cops’ Trust by Design cybersecurity conversations, Tumusiime Ezra, Software Developer and Head of the Mobile Development Team, emphasised the importance of integrating security throughout the development process.
“In a software solution, security doesn’t come in as a phase; it starts from requirements gathering, runs throughout the entire software development cycle, and is still being implemented when the solution is already in production. Security doesn’t become a phase. It becomes part of the whole journey of development.”
For example, introducing a new service may require additional integrations, data exchanges or user permissions. Each of these decisions can create new requirements for protecting information and maintaining appropriate controls.
Addressing security considerations during design allows development teams to make more informed decisions before systems become complex or difficult to modify.
It also encourages collaboration between product, engineering, security and operational teams rather than treating cybersecurity as a final approval stage.
The complexity behind a digital transaction
A customer making a digital payment may experience the process as a few simple steps on a mobile phone. Behind that transaction, however, several systems may need to communicate and function reliably.
Depending on the service, these may include mobile networks, payment infrastructure, application interfaces, financial institutions and external technology providers.
This interconnected environment creates dependencies that are not always visible to the end user.
A problem affecting one component can interrupt the wider service, even where other systems remain operational. Security and resilience therefore require organisations to understand both their own technology environments and the risks associated with external integrations.
This is particularly relevant in African fintech, where interoperability and partnerships are important to expanding the reach of digital financial services.
As platforms grow, organisations must continually evaluate whether their infrastructure and operating processes remain appropriate for the scale and complexity of the services being delivered.
Building resilience into everyday operations
Security does not end when a product goes live.
Software requires updates, access permissions need reviewing, vulnerabilities must be addressed and organisations need appropriate arrangements for maintaining and recovering critical services.
These activities may be less visible than the launch of a new product, but they are essential to sustaining reliable digital operations.
Cyber resilience also involves recognising that preventative measures cannot guarantee that disruption will never occur.
Organisations need to consider how quickly problems can be identified, which services are most critical and how operations can be restored following an incident.
The importance of this preparedness is reinforced by Africa’s evolving threat landscape. INTERPOL’s 2025 Africa Cyberthreat Assessment highlighted ransomware, phishing and financially motivated cybercrime among the threats affecting organisations across the continent.
For digital service providers, cybersecurity must therefore remain an ongoing operational responsibility rather than a one-time development requirement.
Designing for the next phase of growth
African fintech has demonstrated how technology can address longstanding challenges in access, convenience and financial participation.
Sustaining that progress requires organisations to consider the long-term reliability of the platforms they are building, particularly as services expand across markets and become more interconnected.
Security, in this context, should not be viewed simply as a cost or a constraint on development. When incorporated appropriately, it can support more dependable operations, better risk management and greater confidence among customers and institutional partners.
That is why the principle of trust by design matters to the future of African financial technology. Customers may not see the architecture, maintenance processes or security considerations behind a digital service, but their experience depends on the quality of those decisions.
As Africa’s digital economy continues to scale, the companies building its technology infrastructure have an opportunity to establish security and resilience as fundamental standards of innovation.
Doing so will help ensure that the growth of digital services is supported by systems capable of earning and maintaining the confidence of the people who use them.
Watch the full Trust by Design conversation with Tumusiime Ezra.