Defense Cyber Security Market Global Report 2026

The defense cyber security market size has grown rapidly in recent years. It will grow from $27.33 billion in 2025 to $30.47 billion in 2026 at a compound annual growth rate (CAGR) of 11.5%. The growth in the historic period can be attributed to escalating state-sponsored cyber warfare incidents, expansion of digitized defense communication systems, continued dependence on legacy network infrastructures within defense, adoption of perimeter-based security models, early implementation of encryption in military communications.

The defense cyber security market size is expected to see rapid growth in the next few years. It will grow to $47.44 billion in 2030 at a compound annual growth rate (CAGR) of 11.7%. The growth in the forecast period can be attributed to the increasing adoption of autonomous warfare systems and unmanned platform connectivity, expansion of AI-driven threat intelligence capabilities, rising geopolitical tensions driving defense cybersecurity spending, migration toward cloud-native defense infrastructures, and growing demand for real-time battlefield data protection. Major trends in the forecast period include cloud-native defense security orchestration and automated threat response systems, adoption of zero-trust architecture across military networks and critical infrastructure, advanced endpoint detection and response integrated with predictive analytics, expansion of secure tactical communication networks enabling encrypted battlefield connectivity, and increasing deployment of managed detection and response services in defense ecosystems.

The growing allocation of defense budgets is expected to support the expansion of the defense cybersecurity market in the future. Defense budgets represent the total financial resources allocated by governments within a fiscal year to maintain, equip, and modernize military and defense capabilities. The increase in defense budgets is largely driven by rising geopolitical tensions, which compel nations to enhance military preparedness and invest in advanced defense systems to deter potential threats. Defense budgets contribute to defense cybersecurity by financing advanced technologies, infrastructure, and skilled personnel required to safeguard military networks and critical defense systems against evolving cyber threats. For instance, in April 2026, according to the Stockholm International Peace Research Institute (SIPRI), a Sweden-based independent organization, global military expenditure rose by 2.9% in real terms, reaching $2.88 trillion in 2025. Therefore, the increasing defense budgets are driving the growth of the defense cybersecurity market.

Leading companies operating in the defense cybersecurity market are focusing on developing innovative solutions, such as zero-trust architecture, to strengthen cyber resilience, improve threat detection, and protect critical defense infrastructure from advanced cyber threats. Zero trust architecture is a cybersecurity model that requires continuous verification of every user, device, and connection before granting access to any system resource. For example, in December 2025, BAE Systems Plc., a UK-based aerospace company, launched Velhawk, a next-generation cybersecurity framework targeting government customers to boost resilience and speed up threat responses. It integrates AI, automation, and adaptive analytics into a unified zero-trust architecture, drawing from BAE Systems Plc.'s decades of cyber operations experience. It automates detection, decision-making, and remediation workflows to cut incident response times and reduce staffing needs.

In August 2023, Parsons Corporation, a US-based technology, engineering, and defense company, acquired Sealing Technologies, Inc. for an undisclosed value. Following this acquisition, Parsons aimed to broaden its customer reach within the U.S. Department of Defense and intelligence community while enhancing its comprehensive cyber operations portfolio through improved defensive cyber capabilities, artificial intelligence, machine learning, edge computing, and critical infrastructure security solutions. Sealing Technologies, Inc. is a US-based provider of defense cybersecurity services and solutions, including cyber defense, cyber operations, threat intelligence hunting, network security, and mission-focused cybersecurity support.

Major companies operating in the defense cyber security market are Microsoft Corporation, Palo Alto Networks Inc., Fortinet Inc., CrowdStrike Holdings Inc., RTX Corporation, Lockheed Martin Corporation, Cisco Systems Inc., Northrop Grumman Corporation, BAE Systems plc, International Business Machines Corporation, General Dynamics Corporation, Thales Group, L3Harris Technologies Inc., Leonardo S.p.A., Leidos Holdings Inc., Zscaler Inc., Booz Allen Hamilton Holding Corporation, Check Point Software Technologies Ltd., Science Applications International Corporation, CACI International Inc, Palantir Technologies Inc., Trend Micro Inc., Trellix, QinetiQ Group plc, Airbus SE, DXC Technology Company.

North America was the dominant region in the defense cyber security market in 2025. Asia-Pacific is expected to be the rapidly expanding region in the forecast period. The regions covered in defense cyber security report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the defense cyber security market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The defense cyber security market consists of revenues earned by entities by providing services such as vulnerability assessment and penetration testing, secure infrastructure design and hardening, and data encryption and secure communications. The market value includes the value of related goods sold by the service provider or included within the service offering. The defense cyber security market also includes sales of firewalls, intrusion detection and prevention systems, endpoint protection, encryption tools, and data loss prevention (DLP) systems. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

The defense cyber security market research report is one of a series of new reports that provides defense cyber security market statistics, including defense cyber security industry global market size, regional shares, competitors with a defense cyber security market share, detailed defense cyber security market segments, market trends and opportunities, and any further data you may need to thrive in the defense cyber security industry. This defense cyber security market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

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