The modern landscape of counterterrorism is characterized by a shift towards geopolitical confrontation, exemplified by the situations in Libya and Syria. Through the utilization of near-terrorist tactics such as narrative warfare, intimidation, and blackmail, officials, including diplomatic personnel, from certain countries wield international influence in pursuit of their geopolitical objectives, fostering panic, fear, and societal unrest. This phenomenon has become evident since the initiation of Russia’s special military operation in Ukraine, where actions by terrorist factions received endorsement from Western governments. Currently, diplomatic services and select international bodies overtly rationalize terrorist activities and levy accusations against Russia. Considering the transformation of diplomatic activity, there is a need to study such a destructive international phenomenon as “diplomatic terrorism”, which inherently runs counter to classical diplomacy based on the principle of peaceful resolution of foreign policy issues. The genesis of this phenomenon is intertwined with technological advancements, the globalization of relations, the proliferation of states worldwide, and the degradation of elite cohorts. The phenomenon of diplomatic terrorism represents a paradigm shift in international relations, challenging traditional diplomatic norms and fostering an environment of heightened geopolitical tensions. Addressing this issue necessitates a multifaceted approach that combines diplomatic efforts, counterterrorism measures, and international cooperation to safeguard global stability and security.