A worldwide IT disruption, described as the largest antivirus-related failure in history, has affected thousands of companies.

The issue stems from a faulty update in CrowdStrike's Falcon Sensor antivirus program.

Impacted systems include healthcare, airlines, and industrial operations.

CrowdStrike's CEO, George Kurtz, stated the problem was due to an internal error, not an external attack.

IT security specialist Karl Emil Nikka called it a 'historic event,' noting that the full extent of the damage is still unclear.

Experts are working on solutions, but widespread fixes may be challenging due to the nature of the crash.