In a recent interview, Lamine Brahimi, one of the co‑founders of the fintech firm Taurus, outlined the critical prerequisites that financial institutions must satisfy before they can tap into the emerging tokenised‑deposit ecosystem being pioneered by Swift. While the concept of a blockchain‑based ledger for interbank settlements promises greater efficiency, transparency, and speed, Brahimi cautioned that the technology cannot be adopted in a vacuum.
Instead, banks need to build a solid foundation of internal capabilities that align with the unique demands of a permissioned blockchain environment. First and foremost, Brahimi emphasized the necessity of a permissioned ledger. Unlike public blockchains, which allow anyone to join and validate transactions, a permissioned ledger restricts participation to pre‑approved entities.
This model is essential for banks because it preserves the confidentiality of sensitive financial data, complies with regulatory requirements, and maintains the trust that traditional banking networks rely on. Implementing such a ledger involves setting up a consortium of trusted nodes, defining governance rules, and establishing consensus mechanisms that balance security with transaction throughput.
Without this controlled environment, banks would risk exposing proprietary information and could encounter legal obstacles that undermine the very benefits the blockchain aims to deliver. Beyond the ledger itself, Brahimi highlighted the importance of robust wallet tools. In the context of tokenised deposits, a wallet is not merely a digital purse; it serves as the interface through which banks manage, transfer, and reconcile tokenised assets. Effective wallet solutions must support multi‑signature authorisation, role‑based access controls, and seamless integration with existing core banking systems.
They also need to provide real‑time visibility into token balances, transaction histories, and settlement statuses. By equipping banks with sophisticated wallet infrastructure, they can ensure that token movements are accurately recorded, auditable, and aligned with internal risk‑management policies.
The third pillar identified by Brahimi is smart‑contract capability. Smart contracts are self‑executing code that automatically enforces the terms of an agreement when predefined conditions are met. In a tokenised‑deposit network, smart contracts can automate settlement processes, enforce compliance checks, and trigger notifications for events such as maturity dates or margin calls. However, deploying smart contracts in a banking environment requires rigorous testing, formal verification, and adherence to regulatory standards.
Banks must therefore invest in development platforms that allow for secure coding practices, version control, and thorough audit trails. By doing so, they can leverage the efficiency gains of automated contracts while mitigating the risk of bugs or unintended behaviours. Brahimi also pointed out that these three components—permissioned ledger, wallet tools, and smart‑contract functionality—must be integrated into a cohesive architecture. This integration ensures that data flows seamlessly between the ledger and the bank’s legacy systems, that wallet operations are reflected accurately in the ledger, and that smart contracts trigger the appropriate actions across the ecosystem.
Achieving this level of interoperability often requires the use of APIs, middleware, and standardized data formats such as ISO 20022, which is already widely adopted in the payments industry. In addition to the technical prerequisites, Brahimi stressed the need for organisational readiness.
Banks must cultivate internal expertise in blockchain technology, either by hiring specialised talent or by upskilling existing staff. They should also establish governance frameworks that define who can authorise changes to the ledger, who can deploy new smart contracts, and how disputes will be resolved.
Training programs, pilot projects, and cross‑functional working groups can help embed a culture of innovation while ensuring that risk and compliance teams are actively involved in the rollout. Regulatory considerations also play a pivotal role. While Swift’s tokenised‑deposit network aims to operate within existing financial regulations, banks must still conduct thorough due‑diligence assessments to confirm that their blockchain implementations meet anti‑money‑laundering (AML), know‑your‑customer (KYC), and data‑privacy obligations. Engaging with regulators early in the development process can provide clarity on acceptable practices and may even lead to collaborative sandbox initiatives that accelerate adoption.
Finally, Brahimi highlighted the strategic benefits that await banks once these foundational layers are in place. With a permissioned ledger, banks can settle cross‑border payments in near real‑time, reducing the reliance on correspondent banking relationships and lowering transaction costs. Advanced wallet tools give institutions granular control over tokenised assets, enabling new product offerings such as token‑based liquidity pools or digital cash equivalents.
Smart contracts open the door to programmable finance, where complex conditional payments, automated compliance checks, and dynamic interest calculations can be executed without manual intervention. In summary, the path to joining Swift’s tokenised‑deposit network is not a simple plug‑and‑play scenario. According to Lamine Brahimi, banks must first construct a permissioned blockchain ledger, deploy sophisticated wallet solutions, and develop reliable smart‑contract capabilities.
These technical building blocks, combined with robust governance, regulatory alignment, and organisational readiness, will empower financial institutions to harness the full potential of tokenised deposits, driving efficiency, transparency, and innovation across the global payments landscape.