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Critical security vulnerabilities in PHP, a programming language used by roughly 70% of websites worldwide, have triggered widespread website shutdowns and emergency patching. The Korea Times reports that government, school, and hospital websites across Europe and beyond were taken offline Wednesday as organizations rushed to protect themselves, with the flaws identified with the assistance of artificial intelligence. The Korean government has issued a nationwide security alert to businesses and website operators over the vulnerabilities, and Business Korea reports the discovery has raised concerns across the global cybersecurity community. Chosun Ilbo notes that attackers could execute malicious code on web servers without login, raising fears of personal data leaks and service disruptions, and that security experts say web firewalls alone cannot fully block attacks. The PHP development team has distributed emergency security patches, and Korean media report the government has raised its cyber crisis warning to 'caution' level.