 Also in November 2011, a French court fined nuclear power company Électricité de France €1.5m and jailed two senior employees for spying on Greenpeace, including hacking into Greenpeace's computer systems.The sentence was overturned by an appeals court in February 2013.In March 2014, police arrested 57 Greenpeace protesters who used a truck to break through security barriers and enter the Fessenheim nuclear power plant in eastern France.