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Critical security vulnerabilities in PHP, a programming language used by roughly 70% of websites worldwide, have forced government agencies and companies to shut down websites, with European governments suspending operations as a precaution. The flaws, discovered with the help of artificial intelligence, allow attackers to execute malicious code on web servers without login, raising fears of data leaks and service outages. The PHP team has issued emergency patches, but security experts warn that web application firewalls alone cannot fully block attacks.

In Korea, the government has raised its cyber crisis alert to '주의' (caution) and issued a nationwide security alert to businesses and website operators. Yonhap reports an estimated 110,000 vulnerable servers in the country, prompting urgent industry responses. The National Security Office convened an emergency meeting involving government, private sector, and military to take swift action, urging immediate application of security updates.