Following the release of a critical PHP vulnerability patch announced by the National Cybersecurity Office, SoftBank shared information and issued alerts through its CSIRT. It is investigating the impact on websites for corporate customers and, while implementing countermeasures, has taken some sites offline for emergency maintenance. Further outages may occur.
Following the release on 21 October 2026 of a patch for a critical PHP vulnerability, SoftBank's CSIRT, its specialist cyber security incident response team, has been sharing information and issuing alerts internally and to group companies.
The company has begun investigating systems that may be affected on websites and services for corporate customers and has been implementing the necessary countermeasures since the patch was released.
As part of these measures, it has conducted emergency maintenance and is currently suspending some websites and services. It has also announced that temporary suspensions may occur in the future.