Article involves principle of non-intervetion in the context of a alleged Russian alleged Russian interference in the US 58th quadrennial presidential election. Analysis includes review of methods and means of the 2016 cyberintervention, based on a January 2017 assessment of the US intelligence community and 2018 indictments prepared by the Office of Special Counsel. It is followed by examination of legal Nature and scope of the principle of non-intervention under contemporary treaty and customary international law. In the last section conclusions will be drawn in relation to the applicability of the legal framework relating to non-intervention to the alleged Russian interference in the 2016 presidential election.