A leadership-level whitepaper explaining why sovereignty has moved from a technical concern to a business-critical decision. It warns that “EU-hosted is not always EU-controlled”, because a provider’s legal obligations matter as much as where data is stored. It introduces the SEAL framework, which runs from SEAL-0 (no sovereignty) to SEAL-4 (full digital sovereignty). It argues that sovereignty always involves trade-offs and is rarely a binary choice, so most organisations need a hybrid approach that matches the level of control to each use case. It sets out the key questions to answer early, and positions Advania ALT as the shared, governed foundation for putting those choices into practice.