PHP: The three letters that shut down sites all over the internet today

Two newly disclosed PHP vulnerabilities are triggering broad operational risk across a large share of the web, with the potential for unauthenticated remote code execution, data theft, and full server compromise. For CIOs and technology leaders, this is both an immediate incident-response issue and a strategic reminder that legacy, ubiquitous open-source components can become enterprise-wide single points of failure—especially when AI accelerates exploit discovery. IT organizations should expect emergency patching, possible service disruptions, and heightened scrutiny of hosting providers, inventory accuracy, and dependency management across externally facing systems.