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PM Takaichi on X: "Apply the PHP patch urgently" — an unusual request that engineers say will reach executives
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Japan's Prime Minister Sanae Takaichi asked people on X to quickly install a fix for a serious PHP security hole. It is rare for a prime minister to call for this kind of action on social media.
What happened
On the night of October 21, 2026, Prime Minister Takaichi posted on X. She asked people to get ready to apply a fix for an "emergency" weakness in PHP as soon as possible. PHP is a common tool used to build websites. The fix was released about one hour later, around 11 p.m. Japan time. The post also said that if a fix cannot be applied quickly, temporarily shutting down a website can help lower the risk.
Key facts
- The PHP weakness has 2 reports, both rated "emergency".
- Attackers could run their own code on a server from far away, without logging in.
- Details of the weakness leaked online before the fix came out, and proof-of-concept code (a sample that shows how to attack) was already circulating.
- Many services, such as the online shop BASE and the childcare service Kodomon, went into emergency maintenance.
Some background
PHP is a programming language that runs behind many websites. When a security hole is found, the makers release a fix, called a patch. Companies must install the patch on their own systems. Installing it can stop services for a while, so some companies delay it. Engineers say a message from the prime minister can help company leaders understand the risk.
Why it matters
Security holes like this can let criminals take control of websites and data. A prime minister posting about one specific software problem is unusual. Engineers say it helps top managers see that the risk is real. It also shows that shutting a site down for a short time may be better than being attacked.