The multi-cloud imperative: Building resilient payments for the future

Another defining trend is the convergence of payment methods. Instant payments, cards, digital currencies, and new rails are no longer separate streams—they’re increasingly overlapping. For example, instant payments are now being adopted in use cases once dominated by cards or wires. This convergence creates opportunities for banks to simplify their infrastructure, break down silos, and deliver more consistent and frictionless experiences.

For a bank’s customers, the shift means greater choice and flexibility. For institutions, it underscores the importance of investing in platforms that seamlessly accommodate multiple payment types without adding complexity or fragmentation.

Modernization is no longer simply about driving efficiency or cutting costs; it is also about enhancing productivity and improving quality. It has become central to growth and competitiveness. Insights from ACI’s engagement with banks globally reveal that institutions are prioritizing investments in payments modernization to enhance agility, accelerate product delivery, and improve the customer experience.

The risks of doing nothing are, of course, significant. For too long, many banks have relied on a “patch and upgrade” approach to infrastructure. While this may have kept systems running, it’s also introduced hidden costs, operational risks, and significant barriers to growth. With long and inflexible upgrade cycles, banks struggle to respond quickly to market shifts. By the time new features are deployed, customer expectations may have already moved on.

As transaction volumes rise and fraud becomes more sophisticated, legacy systems will increasingly leave institutions exposed—not just operationally, but also from a regulatory perspective. Regulators across the world—from Europe’s Digital Operational Resilience Act (DORA) to emerging data localization laws in Asia—are making operational resilience a top priority. The challenge for banks is to innovate at pace while meeting these obligations.

Resilience has always been a non-negotiable aspect of payments. But in a world of “always-on” expectations, the stakes are higher than ever. Hybrid and multi-cloud strategies are proving essential in meeting this demand.

By diversifying across multiple environments, banks reduce single points of failure and ensure continuity, even in the event of disruption. Cloud-native practices, such as automation and continuous testing, enable updates to be released more frequently and safely deliver speed without compromising reliability.

Importantly, a modern, cloud-native payments platform, such as ACI Connetic, does not demand a clean break from the past. It can coexist alongside legacy systems, acting as an orchestration layer that connects different payment types and channels, or as a controlled bridge for migrating traffic from legacy systems to new ones. This allows banks to modernize incrementally, adding new capabilities without triggering widespread disruption.

This is where strategic collaboration becomes a differentiator. Rather than tackling modernization in isolation, banks are increasingly turning to partnership models that combine specialist payments technology with the integration, cloud, and deployment expertise needed to modernize at pace while managing risk.

This collaborative approach is increasingly how banks operationalize multi-cloud resilience in practice. In fact, multi-cloud capabilities, utilizing public, private, and hybrid cloud models, also provide vital flexibility for meeting regulatory requirements. Workloads can be shifted between environments to comply with local sovereignty rules while maintaining consistent performance.
It is also important to remember that hundreds of millions of dollars are invested in infrastructure that operates over highly redundant, networked data centers. Finding the optimal deployment model for transformational payment solutions requires all partners to collaborate in delivering the client solution that best satisfies regulatory requirements and minimizes concentration risk.

The infrastructure decisions made today will determine competitiveness for years to come. Modern, modular, and cloud-ready platforms allow institutions to innovate, ensure resilience, and adapt to regulatory and market shifts—while coexisting with existing systems to make the transition manageable.

Payments are no longer just the plumbing of financial services; they’re a strategic enabler of growth. As instant payments, digital currencies, and converging rails reshape the industry, modernization has become the foundation for the future of banking. And it is collaboration across the ecosystem— from technology providers to consulting and cloud partners—that will accelerate this shift and reduce risk along the way.