Siemens is working with Microsoft to address a Defender Antivirus problem that can lead to no malware alerts or plant disruptions.

Siemens informed customers on Tuesday that it’s working with Microsoft to address an issue related to Microsoft Defender Antivirus (MDAV) and Simatic PCS products.

According to the advisory published by the industrial giant, the problem is that Defender Antivirus currently does not provide ‘alert only’ functionality.