Insurance broker Arthur J. Gallagher & Co. and its claims unit, Gallagher Bassett, reported that a ransomware incident that happened on Saturday, Sept. 26 limited some of its internal systems.

In a filing with the Securities and Exchange Commission (SEC), the company said it took all of its global systems offline as a precautionary measure, initiated response protocols, launched an investigation, engaged external cybersecurity professionals, and implemented its business continuity plans to minimize disruption to its customers.

On Monday, the Illinois-based global insurance broker reported it had restarted or was in the process of restarting most of its business systems.

As of Tuesday noon (EDT), Gallagher Basset still had a notice on its website that it was experiencing a system outage and is “working diligently to restore all functionality.”

On Monday, Gallagher said that based on the current information, it did not expect the incident to have a material impact