Wire · technology
Critical security flaw shuts down websites worldwide
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Fusion42 · 23 October 2026 · Fusion42 review
A critical security flaw in PHP, a programming language used by 70% of websites globally, forced governments and companies worldwide to temporarily take down websites to apply patches against potential exploits. AI tools played a key role in discovering and demonstrating the exploitability of these long-hidden vulnerabilities.
This Wire brief sits within Fusion42's coverage of Cybersecurity, and 24 sources have reported it between 21 Oct 2026 and 23 Oct 2026.
◆ ◆ The Wire takeaway
Your web platform just turned fragile overnight. Applying the PHP patch immediately is the only way to keep attackers out while this vulnerability floods the internet with hacking attempts.
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24 sources · first reported 21 Oct 2026 · latest 23 Oct 2026
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