Key Highlights
- SoftBank unveiled an AI-driven “Patching as a Service” cybersecurity platform powered by OpenAI, aimed at Japan’s 3,000 most critical enterprises
- The platform operates through SB OAI Japan, a joint venture equally owned by SoftBank and OpenAI established in late 2024
- Masayoshi Son, the company’s CEO, described Japan’s cybersecurity exposure as “a crisis” and positioned the initiative as a national imperative
- Deployment staff will expand dramatically from approximately 50 personnel to 1,000 employees
- SoftBank has committed a total of $64.6 billion in OpenAI investments through 2026
SoftBank Group unveiled an artificial intelligence-powered cybersecurity platform in Tokyo this Tuesday, leveraging OpenAI’s technology to strengthen Japanese corporations’ defenses against digital threats.
Dubbed “Patching as a Service,” the solution focuses on Japan’s 3,000 largest critical infrastructure operators — including airports, energy grids, and transit systems.
Deployment occurs through SB OAI Japan, the equally-owned partnership between SoftBank Corp and OpenAI established last November. This collaboration was designed to build and exclusively distribute AI solutions tailored for Japanese enterprises.
CEO Masayoshi Son spoke bluntly about the danger. He likened Japan’s present vulnerability to cyberattacks as being defenseless against automatic weapons while only having basic firearms for protection.
“We want to create a system where we will be able to defend critical Japanese infrastructure,” Son declared at the Tokyo unveiling.
“I feel it is our duty,” he emphasized.
Platform Functionality
The solution operates through a two-phase process: initially identifying vulnerabilities within an organization’s infrastructure, followed by determining necessary security patches. Son consistently labeled cyber criminals as “the bad guys” during his remarks.
SoftBank Corp CEO Junichi Miyakawa revealed that approximately 50 staff members are currently handling the deployment, with expansion plans reaching 1,000 employees.
OpenAI CEO Sam Altman was originally scheduled for an in-person appearance but participated through a brief video message instead. He cited a simple reason for his absence — his daughter arrived earlier than anticipated. OpenAI Chief Research Officer Mark Chen represented the company at the event.
SoftBank’s Extensive OpenAI Investment
SoftBank ranks among OpenAI’s most significant financial backers. The company’s total committed capital in OpenAI amounts to $64.6 billion through the conclusion of 2026.
This cybersecurity unveiling represents another milestone in an expanding collaboration. The two organizations have been developing AI system integration offerings for Japanese corporations since establishing SB OAI Japan last year.
Recently, the U.S. government halted foreign nationals’ access to Anthropic’s Fable 5 and Mythos 5 models, referencing national security considerations — a development highlighting the increasingly stringent global environment surrounding AI and security.
Both SoftBank Corp (9434.T) and SoftBank Group (9984.T) took part in Tuesday’s corporate presentation held in Tokyo.



