A tangible, non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform a method, comprising:
- receiving messaging data from a first device during a first communications session involving a first application program executed by the first device;
- based on the messaging data, transmitting notification data associated with a second communications session to a second device, the notification data causing a second application program executed by the second device to present, within a digital interface, interface data that requests a validation of an authentication credential;
- receiving confirmation data indicative of the validation of the authentication credential from the second device;
- and
- based on the confirmation data, performing operations that establish the second communications session with the executed first and second application programs and that transmit a portion of the messaging data to the second device during the second communications session.