Fecha de publicación: 24/10/2024 Fuente: Wipo "digitalization" Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for selecting and displaying digital components at client devices in ways that securely maintains user data and protects user privacy are described. In one aspect, a method includes storing, by a client device of a user, a first set of candidate digital components selected based on user data of the user. A digital component management application running on the client device sends, to a trusted server, a digital component request that requests a second set of candidate digital components. The digital component request comprising contextual data describing an environment in which a digital component will be presented. The digital component management application selects a given digital component from among the first set of digital components and the second set of digital components. The given digital component is displayed at the client device.