For Irish enterprises in regulated sectors, moving to the cloud is no longer optional. But the "fastest" path — lift and shift — is proving to be a compliance minefield. Here's why refactoring is the safer way forward.
The "Lift & Shift" Trap
Migrating legacy .NET applications directly to AWS or Azure virtual machines without architectural changes preserves all their existing vulnerabilities. In a cloud environment, those monolithic vulnerabilities are exposed to new attack vectors that didn't exist in your private data center.
Compliance Failures
Auditors for ISO 27001 and SOC 2 are increasingly flagging "unmanaged VMs" as high-risk. Why? Because patching, scaling and key management remain manual processes.
Key Insight
True cloud compliance requires immutable infrastructure — servers that are never patched, only replaced via automated pipelines.
The Solution: Cloud-Native Refactoring
Instead of moving the server, move the logic. By containerizing applications (Docker/Kubernetes) or moving to serverless (Lambda/Functions), you remove the operating-system maintenance burden entirely.
- Automated compliance: Infrastructure as Code (Terraform) documents every permission.
- Reduced attack surface: short-lived containers give attackers no persistence.
- Cost efficiency: pay only for milliseconds of execution, not idle CPU time.
Conclusion
For regulated industries, "lift and shift" is technical debt disguised as progress. The upfront cost of refactoring pays dividends in security, auditability and sleep.
What this looks like delivered
Our ACM cloud audit and compliance case study covers the other side of this: automating the evidence generation that turns "we believe we're compliant" into something you can actually prove on demand.