Separating and migrating AWS-hosted data into a new company account

The challenge

Following a management-level separation, Qinecsa required AWS-hosted data and associated dependencies to move from an existing company account into a new company-controlled AWS account. The work involved more than copying objects between two locations: ownership, permissions, encryption, service dependencies and operational responsibility all had to change in a controlled way. Account-separation projects carry both technical and governance risk. Source access may be time-bound, destination controls must be ready before data arrives, and validation must demonstrate that the new organisation can operate independently. The migration also needed a clear boundary between what was transferred, what remained with the former account and who controlled access after completion.

What we delivered

## Scope and dependency discovery We worked with the available stakeholders to identify the AWS-hosted data and dependencies involved in the separation. The discovery phase distinguished data transfer from service configuration, identity, encryption and network requirements so that the migration plan covered the complete operating context. ## Destination-account preparation The new AWS account was prepared around company ownership and controlled access. Identity and permission requirements were reviewed before migration so that the destination did not inherit unnecessary source-account access patterns. This created a defined landing point for the transferred assets. ## Controlled cross-account migration The transfer was planned in stages, with source and destination responsibilities made explicit. Where AWS services required cross-account permissions, access could be limited to the migration need and removed after validation. The approach considered integrity checks and service dependencies rather than treating successful transfer commands as final acceptance. ## Validation and handover After transfer, the destination environment was checked for accessibility, ownership and operational usability. Handover focused on the new company's ability to control the migrated data and understand the access model without depending on the former management structure.

Outcome

Qinecsa received a company-controlled AWS destination for the data included in the separation scope, with clearer ownership and access boundaries than a continued dependency on the former account. The engagement provided a structured route from shared historical infrastructure to independent cloud control. Discovery, destination preparation, staged transfer and validation were handled as connected parts of the same migration, reducing the risk of data arriving without the permissions or operational context needed to use it. The public case study intentionally excludes confidential data volumes, service inventories and organisational details associated with the management separation.

Technology and platforms

• AWS
• Cross-account migration
• Cloud data migration
• Access management