12 hours ago · Global
What is PHP, and how bad is the computer language flaw causing website shutdowns globally?

What's happening
SignalsMonitor is following this as a conflict story. The Guardian Business is the outlet attached so far. The reports are tied to Global. The first report grouped here was at 21 Oct 2026, 18:20 UTC. 2 material updates are listed in the timeline. The headline in use is “What is PHP, and how bad is the computer language flaw causing website shutdowns globally?”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
An estimated 70% of websites use the open-source language. What is the identified vulnerability in it?
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by The Guardian Business
Flaw in PHP computer language leads to shutdown of websites around world
- Picked up by The Guardian Business
What is PHP, and how bad is the computer language flaw causing website shutdowns globally?
Reported by 1 outlet
- The Guardian