a safety device and method for protection of the integrity of well barrier or other interfacing structure at an end of a riser string or a hose includes a releasable connection in the riser string or hose , the releasable connection arranged to release or disconnect during given predefined conditions in order to protect the well barrier or other interfacing structure . the safety device safety device includes at least one sensor to monitor at least one of tension loads , bending loads , internal pressure loads and temperature . the sensor provides measured data relating to at least one of tension loads , bending loads , internal pressure loads and temperature . an electronic processing unit receives and interprets the measured data from the sensor . an electronic , hydraulic or mechanical actuator or switch is arranged to receive a signal from the electronic processing unit and initiate a release or disconnect of the releasable connection .