Which two subsets covered stored communications under the Electronic Communications Privacy Act?

The correct answer highlights the two primary subsets that the Electronic Communications Privacy Act (ECPA) designates for covering stored communications. Electronic Communications Services refers to any service that provides users with the ability to send or receive electronic communications. This includes emails and text messages stored on servers owned by service providers. Under the ECPA, these types of communications are granted certain protections from unauthorized access.

Additionally, Remote Computing Services is defined as a service that provides the ability to store or process data for users over the internet. This ensures that communications that are stored off-site, such as files stored in cloud services, are also protected under the ECPA. Both subsets together create a framework ensuring privacy and security for stored electronic communications.

The other options do not align with the definitions provided in the ECPA, as they either refer to concepts not explicitly defined within the act or do not encompass the range of services that involve stored communications. Message Storage Services is not a recognized category within the ECPA, and Secure Authentication Control does not pertain directly to the storage of communications, thus misleading in the context of the question.