Is Travel Rule Solution Architecture a Compliance Decision?

When choosing a Travel Rule solution, oftentimes the biggest deciding factors are: can the solution transmit the required Travel Rule data, followed by the solution’s price. 

Unfortunately, it is not that simple. Firstly, the Travel Rule does not function in isolation. In the EU, for example, it must be interpreted alongside other frameworks, such as DORA, MiCA, and the GDPR. This means the way a solution is deployed, not just what it does, can impact compliance over the long run. 

A Travel Rule solution’s infrastructure is a key compliance consideration. For compliance teams that have invested significant time and resources in achieving regulatory compliance, a solution’s architecture should not unintentionally undermine this work.

Below, find out what to consider and how to avoid compromising your compliance efforts when choosing a Travel Rule solution. 

Why Travel Rule Solution Infrastructure Choice Is a Strategic Compliance Decision

Choosing an on-premises Travel Rule solution gives your organisation full control over its most sensitive asset: customer data. 

It is this data that frameworks like the GDPR try to protect. If this data is leaked or tampered with, the digital asset entity in question faces significant risks, such as reputational damage, loss of customers, fines and in the worst case, closure. 

With an on-premises setup, personally identifiable information (PII) remains within your own servers and infrastructure. Meaning, unlike SaaS models, there is no third-party hosting provider storing or processing that data externally. 

This significantly reduces exposure to breaches linked to cloud environments or external vendors and lowers the reputational risk that ultimately falls on the regulated entity, not the software provider.

Complete Control over Sensitive Data

On-premises guarantees data control. When a system is hosted internally, your organisation determines the security architecture, access controls, encryption standards, and monitoring processes. 

You are not dependent on another company’s security posture or operational resilience. This allows you to implement security measures tailored to your internal policies and to meet jurisdiction-specific requirements more precisely.

Data Retention and Deletion Certainty

Data retention and deletion policies are another key compliance consideration. Many regulations require that data be retained for defined periods and securely deleted once obligations are fulfilled. 

The issue with a SaaS solution is a lack of control. You can request the deletion of data, but there is no guarantee that the provider will comply. You also have no certainty that the provider’s retention schedules align with the regulatory requirements of your jurisdiction. 

With an on-premises solution, organisations can decide exactly when data is physically deleted and ensure retention schedules align with regulatory requirements, thereby always ticking this compliance box. 

Audit Readiness Ensured 

When infrastructure and logs are controlled in-house, organisations can provide regulators with direct, real-time visibility into systems, transaction records, and internal actions. 

Naturally, SaaS providers can also provide this information, but several issues can arise when requesting it. 

Depending on the provider, this information may come at an additional cost based on your support tier. 

Moreover, SaaS providers usually store data for a fixed period; this period may not align with your jurisdiction's requirements, so older data, such as historical transactions, may not be readily available. The issue here is the time frame. Audit timelines are strict; your provider may not be able to compile the data in this period due to their internal processes.  

Additionally, data may not be structured in the required format per your jurisdiction’s requirements, or may be missing, resulting in an incomplete audit for your company. 

Mitigate Cross-border Data Transfer Risks 

Local data hosting can also help mitigate cross-border data transfer risks, particularly in jurisdictions where data localisation rules apply, or where international transfer mechanisms are under scrutiny.

Additionally, during an audit, proving the integrity of this cross-border-hosted data can be more difficult, as it relies on the providers' attestations rather than your internal controls. 

Limit Outsourcing Risk Exposure

Under MiCA and DORA, outsourcing does not transfer responsibility.

Even when operational functions are delegated, the regulated entity remains fully accountable. SaaS deployment introduces additional layers of reliance on vendors and subcontractors, which in turn increases the governance, monitoring, and documentation burden on compliance teams.

Operational independence is equally important. On-premises systems reduce reliance on a provider’s uptime, infrastructure availability, or business continuity arrangements in order to execute transactions. This minimises additional points of failure and removes certain layers of third-party risk that would otherwise require extensive contractual oversight and monitoring

The Bottom Line 

While SaaS solutions may offer convenience and faster initial deployment, an on-premises Travel Rule solution offers stronger data sovereignty, clearer accountability, reduced third-party exposure, and greater long-term control. 

In a regulatory landscape where data breaches are increasingly common and compliance expectations continue to tighten, maintaining direct control over customer PII is not just a technical decision; it is a strategic one.

Sources: 

21 Analytics. DORA Guide. Available at: https://www.21analytics.co/dora-guide/

21 Analytics. GDPR and the Travel Rule. Available at: https://www.21analytics.co/blog/gdpr-and-travel-rule/

21 Analytics. GDPR Explained for VASPs. Available at: https://www.21analytics.co/blog/gdpr-explained-for-vasps/

21 Analytics. SaaS: A Double-Edged Sword. Available at: https://www.21analytics.co/blog/saas-a-double-edged-sword/

21 Analytics. Why 21 Travel Rule is Safer. Available at: https://www.21analytics.co/blog/21-travel-rule-is-safer/

Confluent Cloud. Audit Logging Best Practices. Available at: https://docs.confluent.io/cloud/current/monitoring/audit-logging/best-practices.html

European Union. Article 5 – Principles relating to processing of personal data (GDPR). Available at: https://gdpr-info.eu/art-5-gdpr/

European Union. Regulation (EU) 2022/2554 – Digital Operational Resilience Act (DORA). Available at: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32022R2554

GDPR Regulation. Data Retention Requirements under GDPR. Available at: https://www.gdprregulation.eu/data-retention-requirements/

Google Cloud. Audit Logging Overview. Available at: https://cloud.google.com/logging/docs/audit

Google Cloud. Audit Logging Best Practices. Available at: https://cloud.google.com/logging/docs/audit/best-practices