Defense Cybersecurity Market worth $34.53 billion by 2031

DELRAY BEACH, Fla. , May 27, 2026 /PRNewswire/ -- According to MarketsandMarkets™, the defense cybersecurity market is projected to grow from USD 20.34 billion in 2026 to USD 34.53 billion by 2031 at a CAGR of 11.2%.

Browse 200 market data Tables and 180 Figures spread through 300 Pages and in-depth TOC on 'Defense Cybersecurity Market - Global Forecast to 2031'

Defense Cybersecurity Market Size & Forecast:

Defense Cybersecurity Market Trends & Insights:

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Modern defense operations rely on shared data across command systems, sensors, weapons, cloud platforms, and data centers. This creates demand for access control, encryption, monitoring, endpoint protection, and cyber testing to reduce disruption during missions and support secure information sharing.

Defense suppliers and military users face frequent cyber pressure from state-linked groups and ransomware actors. Governments are tightening supplier security, zero-trust plans, and cloud controls, which support demand for managed services, security operations, IAM, and sensitive data protection programs.

The homeland security segment is expected to grow at the fastest rate because border and coast protection units and special operations units need more defense cybersecurity solutions and services for network security, endpoint security, cloud security, data security, identity access management, security operations, zero trust, cryptography, and cyber testing to protect mission systems, surveillance platforms, and critical public safety networks.

The defense industrial base & data centers segment is expected to account for a prominent market because defense suppliers and data centers store, process, and sensitive program, mission, and operational data. These environments need network security, IAM, encryption, backup, cloud security, monitoring, managed services, and cyber testing to reduce the risk of data loss, system disruption, and unauthorized access.

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Europe is projected to be the fastest-growing market for defense cybersecurity during the forecast period.

Europe is projected to be the fastest-growing defense cybersecurity industry because defense agencies are increasing cyber spending after continued cyber and hybrid threats. NATO treats cyberspace as an operational domain, and the EU cyber defense policy calls for more cooperation and investment in cyber defense. This supports demand for secure networks, cloud security, IAM, encryption, monitoring, managed services, and defense supplier security.

Booz Allen Hamilton Inc (US), General Dynamics Corporation (US), Leidos (US), BAE Systems (UK), and CACI International Inc (US) are the major players in the defense cybersecurity companies . These companies have strong distribution networks across North America, Europe, Asia Pacific, and the RoW.

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