This article reports on the concept of electronic data safes for managing personal data and describes the landscape of existing services. Using an exploratory research approach, a model of hierarchical service layers is developed. It serves as a structure for orientation in this emerging field of tools and services. Furthermore, we identify factors and areas of interest that are relevant for the adoption of electronic data safes in e-government and e-business using the Unified Theory of Acceptance and Use of Technology as a theoretical lens. We conclude that clearly perceivable benefits are key facilitators for the adoption of electronic data safes by end-users.