ENISA: Which is not identified as a top security risk in ENISA research?

SQL Injection is an application-layer attack class that predates cloud computing and is not unique to or amplified by cloud architectures. ENISA's cloud risk research specifically identifies risks that arise from or are exacerbated by the cloud model itself, such as multi-tenancy isolation failures and loss of customer governance, making SQL Injection out of scope for that top-risk list.

Management Interface Compromise is an ENISA-identified top cloud risk because cloud management APIs and portals expose a broad attack surface that can grant control over entire customer environments if compromised.

Isolation Failure is a top ENISA-identified cloud risk specific to multi-tenant architectures, where a breakdown in separation can expose one tenant's data or compute resources to another.

Loss of Governance is one of ENISA's primary identified cloud risks, occurring when customers transfer control over their data and infrastructure to a provider and lose the ability to enforce their own security policies.

Insecure or Incomplete Data Deletion is an ENISA-identified top cloud risk because data may persist on shared storage media after a tenant requests deletion, due to the distributed and redundant nature of cloud storage systems.