Experts attending a seminar via video link under the 47th Session of the United Nations Human Rights Council called for global efforts to curb the large-scale cyber surveillance conducted by the U.S. on other countries. Nine experts among other participants discussed the situation in three aspects related with the U.S. cyber surveillance: the U.S. legislation and practice on cyber surveillance, the evaluation of the U.S. behavior based on international law and the efforts against such hegemony.