Abstract: The present invention relates to a product and a method capable of securing a window assembly or a door assembly, so that in case the window or door, such as a pane in the window or door, is broken it is not possible to open the window or door because the securing mechanism according to the invention blocks the window or door from being opened. The invention may further provide for blocking all or a selection of windows and doors in the house, as well as for connection to alarms, such as existing alarms in the house. The invention includes an actuator actuating when a locking signal is forwarded. Said locking signal may be a radio signal, an electric or electronic signal, or a mechanical signal.