Preface

This topical issue of the journal is dedicated to some specific aspects of information security emerging under actual threats and challenges, as well as to approaches aimed at preventing and averting of information-technical and information-psychological aggression. Many presented articles deliver original solutions intended for the protection of organization-technical systems of critical infrastructure capable of active counteraction, including protection of the personnel against malicious information-psychological impacts. New approaches are proposed to the security assurance based on modeling the scenarios of the conflict parties' behavior and on the synthesis of intelligent counteraction systems in cyberspace. Namely: anticipatory counteraction, masking and network counterintelligence, information content management and integrity's semantic control.