1. A computer-implemented method of preventing information considered to be sensitive from viewing by a customer support agent, comprising: establishing a support session between a user computing device and a support agent computing device; transmitting first user interface (UI) content displayed on a display of the user computing device from the user computing device to the support agent computing device; receiving support content from the support agent computing device, the support content comprising a graphical element, and the graphical element being generated by the customer support agent viewing the first UI content at the support agent computing device; displaying on the display of the user computing device the first UI content and the support content overlaid on the first UI content; searching for a sensitive indicator tag associated with a field of second UI content; determining from the searching that the second UI content displayed on the user computing device contains sensitive information; in response to the determination that the second UI content contains the sensitive information, obfuscating the sensitive information in the second UI content from display on the support agent computing device; and displaying on the display of the user computing device the second UI content including the sensitive information.