This add-on transfers data between the web application and the running process within native messaging, where the required command possibly containing user data is executed by the running library. This data is only processed in computer RAM, it is not stored unless the user explicitly gives the command to the library. After the command is processed, user data are deleted from RAM.
More information on how our company handles sensitive data can be found at this link: https://www.ica.cz/Userfiles/files/Provolani_o_OOU_1v02.pdf