Elisa disables PHP over critical vulnerability, disrupting some business websites

• Elisa temporarily disabled PHP in its Yritysweb service because of a critical vulnerability, leaving some websites unavailable.
• The disruption began Oct. 21, 2026, at 18:17; repairs are expected by Oct. 22, 2026, at 12:00.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Elisa Oyj published the original content used to generate this news brief on October 22, 2026, and is solely responsible for the information contained therein.