21 Jul, 2026

Microsoft warns of surge in ACR Stealer attacks on customers

Microsoft has observed a surge in attacks using the ACR Stealer malware to steal browser-stored passwords, authentication tokens, and sensitive documents from its enterprise customers. Between late April and mid-June, the threat actor used the ClickFix social-engineering method, WebDAV servers, and the MSHTA (Microsoft HTML Application Host) utility to deliver the info-stealing payload. ACR Stealer […]

3 mins read