TY JOUR TI METHOD FOR MULTILEVEL PROACTIV INFORMATION OF SECURITY INITIATIVE IN COMPUTER NETWORKS KW cyberspace KW protection of an information network KW computer attacks KW trace of a route KW IP protocol KW multilevel proactive protection of information KW system attacks JO Problems of risk management in the technosphere AU Lipatnikov, V.A. AU Kostarev, S.V. AU Korolkov, A.P. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia