AsianFin--IT security firm Crowdstrike says it has identified the issue, isolated it and deployed a fix. 

Many of those affected by IT outages this morning have blamed Crowdstrike for issuing an update, which may have caused the global issues. 

Crowdstrike's CEO, George Kurtz, issued this statement. "Crowdstrike is actively working with customers impacted by a defect found in a single content update for Windows hosts. Mac and Linux hosts are not impacted. This is not a security incident or cyberattack. The issue has been identified, isolated and a fix has been deployed."

Crowdstrike is a cybersecurity service designed to stop internet breaches or hacks for the world's biggest companies.

A software update issued by the firm hours ago is believed to be behind the worldwide outages.