This paper examines the UK’s cyber security strategy and identifies the determinants of strategy by looking at the strategic orientation that is commonly associated with the country’s response to the Huawei crisis and data security issue. Using the discussions of role theory and intelligence cycle theory, the paper traces how the decision-maker’s threat perceptions and role conception, along with the risk assessments of the intelligence agency, have acted as major factors in determining the country’s response to cyber security. It is argued that the British government’s threat perception towards China, its role conception, and the GCHQ’s cyber security risk assessments have determined the strategic orientation of the country’s cyber security strategy, seeking out a leadership role in building international cyber security cooperation based on a democratic alliance. Based on its analysis, the paper aims to demonstrate two things. First, the national cyber security strategy is not only influenced by exogenous and structural factors but also endogenous and ideological factors, and second, the nature and direction of cyber security strategy can be clearly understood only when the common strategic orientation associated with issue-specific responses is analysed in advance.