A method, system and computer program product for blocking access to restricted elements of application interface and covering the restricted elements by trusted interface elements. The system includes an analyzer module, a database of restricted elements and a blocking module. The analyzer module is configured to detect interface elements of an active application rendered on a computer or a mobile device. The analyzer module determines if an application interface element is restricted by comparing the application interface element against the known restricted interface elements from the database. If the restricted element is detected, the analyzer module sends the data about the restricted element to the blocking module. The blocking module covers the restricted interface element by a trusted interface element or by an image.