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A critical security vulnerability in PHP, a programming language used by roughly 70% of websites worldwide, has been discovered with the help of artificial intelligence, prompting government agencies and companies globally to take websites offline. The Korea Times reports that the Korean government has issued a nationwide security alert to businesses and website operators over the flaws, which are sparking widespread alarm. Yonhap notes that the discovery would have been impossible without AI assistance, and Chosun Ilbo reports that European countries have temporarily suspended government website operations as a precaution. The vulnerability, which had gone unnoticed for years, was found through AI analysis, raising fears that hackers could use AI for large-scale cyberattacks. Experts quoted by Kyunghyang Shinmun call it a 'double-edged sword,' with Ami Luttwak, co-founder of Wiz, describing it as 'the most serious security vulnerability AI has found,' according to Chosun Ilbo. The PHP Foundation reportedly knew of signs two years ago but failed to fix it, and the U.S. NSA has advised going offline if patches cannot be applied, as Maeil Business Newspaper reports.