Embodiments of the present disclosure provide a method, an electronic device, and a computer program product for data protection. The method described here includes backing up an identifier of an application wrapper operating on a source platform and application data to a repository. The method further includes acquiring a container mirror image based on an identifier of a target platform and the identifier of the application wrapper that is restored from the repository, the container mirror image targeting the application wrapper operating on the target platform. The method further includes applying the application data restored from the repository to a container started from the container mirror image. With the solution of data protection of the present application, it is possible to efficiently migrate applications on a source platform to multiple different types of target platforms flexibly by backing up only application data and identifiers of application wrappers, thus improving the efficiency of data protection.