# Websites taken down worldwide as critical cyber-security update issued

- Published: 2026-10-21T19:54:57Z
- Updated: 2026-10-22T03:04:49Z
- Section: Breaking
- Language: English (en)
- Source: BBC News — https://www.bbc.co.uk/news/articles/cmly0lg3w5x2o?at_medium=RSS&at_campaign=rss
- Tags: BBC News · Top News
- Canonical: https://www.khabarestan.com/en/news/%D9%88%D8%A8%D8%B3%D8%A7%DB%8C%D8%AA%D9%87%D8%A7%DB%8C-%D8%AC%D9%87%D8%A7%D9%86%DB%8C-%D8%A8%D9%87-%D8%AF%D9%84%DB%8C%D9%84-%D8%A2%D8%B3%DB%8C%D8%A8%D9%BE%D8%B0%DB%8C%D8%B1%DB%8C-%D8%A7%D9%85%D9%86%DB%8C%D8%AA%DB%8C-%D9%86%D8%A7%D8%B4%DB%8C-%D8%A7%D8%B2-%DA%A9%D8%AF-PHP-%D8%A7%D8%B2-%DA%A9%D8%A7%D8%B1-%D8%A7%D9%81%D8%AA%D8%A7%D8%AF%D9%86%D8%AF

The vulnerabilities with PHP, a programming language widely used across the internet, have been described as the most significant ever found by AI.

---
Original text, summarised by this site.