Secure Cloud Migration & Data Sovereignty in the Cloud

As an increasing number of organizations embrace cloud services while legal and compliance requirements are expanding globally, there is a greater need than ever for multi-cloud large-scale data sovereignty.

The migration of data to the cloud introduces several distinctive data access and key protection considerations. 

Recognizing and understanding the concept of data and encryption key sovereignty associated with cloud migration is imperative for organizations.

A proactive understanding of both sovereignty concepts empowers to navigate cloud migration processes with heightened awareness, reinforcing their security posture in the face of evolving threats and legal demands.

The Benefits of Cloud Migration

Investing in cloud technology creates numerous advantages. Notably, increased security, scalability, and flexibility emerge as key benefits in this transformative landscape.

Migrating to one of the major Cloud Service Provider (CSP) offerings significantly enhances security measures by them offering a fortified environment for data storage and access. Through this transition, businesses gain access to the latest security technologies and best practices, ensuring a robust defense against evolving cyber threats.

Moreover, businesses can effortlessly scale their operations up or down as per requirements, streamlining processes and optimizing resource utilization. 

In addition to security and scalability, cloud adoption introduces a new level of flexibility to business operations. The cloud empowers organizations to swiftly deploy new applications and services, fostering agility and responsiveness. This agility is pivotal in adapting to dynamic market conditions, allowing businesses to remain competitive and flexible.

In essence, the strategic investment in cloud technology also unlocks the potential for operational efficiency, cost savings, and heightened adaptability, making it a pivotal asset for organizations managing extensive customer and internal data.
 

Sovereignty Concerns when Migrating to the Cloud

When organizations decide to transition to the cloud, there are several concerns they need to address to ensure a smooth and secure migration. Besides well-known and frequently discussed ones, such as network security, Identity and Access Management (IAM) or Data Backup and Recovery, top of mind currently is Data Sovereignty alongside Key Sovereignty.  
To address these concerns effectively, organizations need to adapt to the right key management strategy as base for sovereignty over data across hybrid and multi-cloud environments. This also heavily supports navigating the complex regulatory landscape on a global scale.

Unlocking Data Sovereignty in the Cloud based on External Key Control

Encrypting your cloud-stored data is great but useless if unauthorized entities might be able to get access to your encryption keys and - through that - access to your data. 

Bring Your Own Key (BYOK) and Hold Your Own Key (HYOK) lay the foundation for strong key sovereignty and improved cloud data protection, ranging from enhanced security and control to, in HYOK scenarios, a high degree of data sovereignty. 

• Encryption Key Sovereignty  
  This concept refers to an organization’s control over the creation, storage, access, and utilization of the encryption keys that protect its data. In cloud environments, it means the organization—not the CSP—governs who can access and use those keys.
• Data Sovereignty  
  This refers to an organization’s ability to maintain full control over their cloud-stored information, ensuring that only the organization determines who can access it, how it is used, and that it stays protected even if the CSP is served with a U.S. CLOUD Act warrant.  

External Key Management unlocks both – encryption key and data sovereignty in the cloud. A capable Key Management System (KMS) ensures strict separation between encrypted data and the keys protecting it. Furthermore, a KMS unifies the storage, management and orchestration of all on-premises and cloud keys, enabling consistent access controls and providing reliable audit tracks throughout globally distributed and heterogenous digital infrastructures.

Secure Migration to the Cloud

Secure cloud migration encompasses several key security principles, including sovereignty, confidentiality, authenticity, and integrity. 

It's important to note that security in the cloud is a shared responsibility between the CSP and the tenant. While the provider secures the infrastructure, organizations are responsible for securing their data and applications within the cloud.

Robust encryption paired with strong key management forms the bedrock of secure cloud migration and reliable data sovereignty, safeguarding cloud-stored information both at rest and in transit. As a result, even if unauthorized access occurs, the data remains unreadable.

Own Your Keys, Secure Your Cloud Migration

When migrating to the cloud, organizations must place the protection of cloud-stored data at the center of their security strategy. This starts with enforcing strict separation between encrypted data and the keys that protect it. Implement a BYOK or HYOK strategy aligned to your regulatory obligations, and back it with an enterprise-grade KMS that keeps keys fully outside CSP reach—including from legally compelled disclosure. 

Utimaco's Enterprise Secure Key Manager (ESKM) delivers centralized, cross-environment key management across on-premises and multi-cloud infrastructures through a single pane of glass. 

For organizations seeking a fully managed alternative, Enterprise Key Manager as a Service (EKMaaS) provides the same enterprise-grade key management capabilities combined with the ones of a General Purpose Hardware Security Module as a geo-redundant cloud-enabled service.