The global Operational Technology (OT) Security Market size is expected to grow from an estimated value of USD 17.9 billion in 2023 to 38.2 billion USD by 2028, at a Compound Annual Growth Rate (CAGR) of 16.3%. Factors driving the market growth include the rising demand for Industry 4.0 and smart infrastructure and the convergence of OT and IT infrastructure. The market can be classified based on deployment into two main segments: cloud and on-premises. The manufacturing segment holds the largest market size during the forecast period.