Systems and methods for controlling data access in client-side encryption

Abstract

Systems and methods for controlling access to data in applications using client-side encryption. In that regard, in some examples, a first application (e.g., an email application, calendar application, messaging application, word processing application, file storage application, etc.) hosted from a particular web domain may be configured to invoke a second application hosted from a different origin (e.g., a different web domain or subdomain) to handle receiving and encrypting any sensitive information from a client entered through a client application (e.g., a web browser), and to handle decrypting information to be provided to the client through the client application. This second application may be loaded in an inline frame or similar subwindow or subroutine configured to prevent or limit the first application from having access to sensitive information in the second application.