Japan Cybersecurity Plan has received a major boost with the launch of a ¥10 billion emergency package to tackle cyberattacks and data breaches. Announced on November 6, 2026, the package aims to improve the country’s ability to protect government systems, businesses and important digital services from online threats.

Prime Minister Sanae Takaichi announced the measures as Japan faces growing cybersecurity challenges in an era of artificial intelligence (AI). Cyberattacks are becoming more advanced, and criminals are increasingly targeting organisations that depend on digital systems to manage information and provide essential services.

The new package will use funds from Japan’s fiscal 2026 reserve budget. It will support AI-based security checks, police investigations, emergency assistance for affected businesses and the development of specialist cybersecurity teams.

Japan Allocates ¥10 Billion to Cybersecurity

The emergency package will provide funding for several areas of cybersecurity. Around ¥2 billion has been allocated for AI-assisted vulnerability assessments of important government systems.

These assessments will help identify weaknesses in computer networks and digital platforms before attackers can exploit them. Finding security gaps early can help government departments improve their systems and reduce the risk of data theft.

Another ¥4.1 billion will support police cybercrime investigations. This funding is expected to strengthen the ability of law enforcement agencies to investigate online attacks, collect digital evidence and identify those responsible.

The package will also support security improvements using artificial intelligence and provide assistance to organisations affected by cyber incidents.

AI-Based Cybersecurity Teams to Support Businesses

One of the important measures is the planned creation of a cyber rescue team involving experts from government agencies and the private sector.

The team will provide initial support to companies facing cyberattacks. Its work may include identifying the source of an attack, checking affected systems and helping organisations take steps to limit further damage.

Japan’s Ministry of Economy, Trade and Industry is also expected to establish a specialist cybersecurity team, described as a “top gun” team, by the end of November 2026.

The team will use AI tools to identify weaknesses in computer systems and respond to hacking attempts. The approach reflects Japan’s effort to use advanced technology to improve digital security.

Growing Cyber Threats in Japan

The new measures come after several cyber incidents affected Japanese businesses. One reported case involved a ransomware attack on GMO Internet Group.

Ransomware is a type of malicious software that can lock access to computer systems or files. Attackers may demand money in exchange for restoring access or preventing stolen information from being released.

Such attacks can interrupt business operations, expose private information and create financial losses. Companies that provide digital services can also face difficulties serving customers when their systems are affected.

Reports have also linked some recent attacks on Japanese companies to the use of the Chinese AI cybersecurity tool Artex. The reported cases highlight concerns about how artificial intelligence can be used in cyber operations.

Japan Strengthens Active Cyber Defence

Japan is also moving towards a stronger active cyber defence system. The country’s new legal framework, described in the supplied report as having been introduced in October 2026, allows authorities to access servers used by attackers under specified conditions.

Active cyber defence focuses on identifying and responding to cyber threats before they cause serious damage. It can involve monitoring suspicious activity, investigating attacker infrastructure and taking authorised steps to prevent further attacks.

The approach is part of Japan’s wider effort to protect important digital infrastructure. However, the use of such powers also requires clear legal rules, oversight and safeguards to protect privacy and prevent misuse.

Role of Japan’s Cybersecurity Institutions

Japan already has several institutions responsible for coordinating cybersecurity activities.

The Basic Act on Cybersecurity, enacted in 2014, provides a framework for cybersecurity responsibilities across the country. It recognises that protecting cyberspace is not only the responsibility of the central government. Local governments, critical infrastructure operators and businesses also have important roles.

The Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) helps organisations respond to computer security incidents. It also coordinates vulnerability information and supports communication between organisations facing cyber threats. It is a non-profit coordination centre and does not have criminal investigation powers.

The National Police Agency’s Cyber Force provides technical support to police departments across Japan. It also monitors cyberspace for potential threats and supports investigations involving digital crimes.

Japan’s Cybersecurity Strategic Headquarters, chaired by the prime minister, coordinates cybersecurity policies across government ministries. Its role is to support national planning and cooperation rather than directly respond to individual cyber incidents.

Why the New Package Matters

Japan’s economy depends heavily on digital services, online communication, financial systems and connected infrastructure. A major cyberattack can affect government operations, private businesses and services used by ordinary people.

The use of AI has also changed the cybersecurity landscape. It can help security teams detect threats and identify weaknesses, but advanced digital tools can also be misused by cybercriminals.

Through the ¥10 billion package, Japan aims to improve its ability to detect attacks, investigate cybercrime and support organisations facing digital threats. The planned cooperation between government specialists and private companies is also intended to strengthen the country’s overall response system.

The package forms part of Japan’s wider effort to improve national security as cyber threats continue to develop.