PALO ALTO | Artificial-intelligence and semiconductor companies have become priority targets in cyber espionage because they hold the models, designs, research and supply-chain knowledge that shape economic and military power. CrowdStrike says China-linked actors represented the most significant espionage threat to technology organizations between April 2025 and March 2026. China rejects allegations that it sponsors hacking.
The technology sector includes hardware, software, cloud services, IT providers and chip companies. Each part of that system provides different intelligence value.
AI companies hold model weights, training methods, data pipelines, safety research and deployment information. Stealing those materials could save years of development.
Semiconductor firms hold chip designs, fabrication processes, packaging knowledge and customer information. The industry depends on a small number of specialized suppliers.
State-linked espionage is different from ordinary ransomware, though the same vulnerabilities may be used. The objective may be information rather than immediate payment.
Attackers can remain inside networks for months. They may collect email, source code, meeting records and credentials without disrupting operations.
Technology companies are difficult to defend because employees collaborate across countries and contractors. Access is distributed across cloud systems.
AI development increases the amount of sensitive information stored in shared environments. Teams need fast access to large datasets and computing systems.
That speed can conflict with least-privilege security. Accounts may retain access after projects or employment relationships change.
Supply-chain attacks are especially dangerous. Compromising a software or service provider can create access to many customers.
CrowdStrike also highlighted North Korean activity involving false identities used to obtain technology jobs. Those operations can generate revenue and provide insider access.
Russia, Iran and criminal groups remain active threats. Describing China-linked actors as the largest espionage threat does not mean other risks are minor.
Attribution is difficult. Researchers use infrastructure, tools, targets and operational patterns to connect activity to a government or group.
Those assessments can be strong without reaching the certainty of a criminal conviction. Governments may have additional classified evidence.
The Chinese Embassy said China opposes hacking and called for cooperation on AI governance. Beijing frequently argues that Western allegations are politicized.
Companies should respond through architecture rather than nationality-based suspicion. Security controls must apply to all accounts and vendors.
Multifactor authentication, hardware keys, network segmentation and continuous monitoring reduce risk. No single tool is sufficient.
AI firms should separate model development, production and research environments. Access to weights and training data should be logged and limited.
Semiconductor companies need protection across design houses, fabs, packaging facilities and equipment suppliers. A small contractor can expose a larger partner.
Boards must understand cyber espionage as a strategic business risk. The loss may not appear immediately on a financial statement.
Governments can provide threat intelligence and pursue legal action, but companies remain responsible for basic security and incident response.
Export controls may increase espionage incentives by limiting legal access to advanced technology. That does not make controls ineffective, but it changes the threat.
The competition over AI is not only about compute and talent. It is also about protecting knowledge while maintaining open research.
Companies should avoid exaggerating every intrusion as a state campaign. Accurate attribution protects credibility and helps defenders choose the right response.
Additional Reporting By: Reuters; CrowdStrike; Cybersecurity and Infrastructure Security Agency