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PHP flaw prompts digital service shutdowns across Japan
Japanese banks, airlines, rail and retail businesses suspended some digital services as a precaution after PHP developers disclosed a security flaw and released patches. The disruptions affected investment account applications, digital boarding passes and customer support websites. Japan’s government said it had not confirmed any attacks exploiting the vulnerability.

What to know
- 01
Shizuoka Bank took its website and mobile app offline. All Nippon Airways suspended features including Apple Wallet boarding passes, saying it had found no signs of intrusion.
- 02
In a survey of Tokyo Stock Exchange-listed companies, 70% of respondents running PHP systems were still using software versions no longer receiving technical support.
Why it matters
The report places these shutdowns against Japan’s widespread legacy software use and cybersecurity staffing shortages, highlighting difficulties in maintaining both security and service continuity.
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