Microsoft Warns of Surge in ACR Stealer Malware Attacks

Microsoft has reported a noticeable increase in attacks using the ACR Stealer malware, aimed at its corporate customers.

What the malware steals

According to the company, ACR Stealer harvests passwords saved in browsers, authentication tokens, and users' confidential documents from infected devices.

Who was affected

The attacks targeted Microsoft's corporate customers. The company recorded a rise in such activity and warned customers about it directly.

Microsoft has not disclosed the details of specific incidents, the number of affected organizations, or how the malware initially penetrated their infrastructure.

Microsoft advises customers to pay attention to credential protection and to monitor for suspicious activity related to the theft of passwords and tokens saved in browsers.

Source: Bleeping Computer