ACR Stealer is targeting enterprises through ClickFix lures, PowerShell scripts, blockchain services, and malicious image ...

Key TakeawaysExporting Exchange mailboxes to PST files is useful for backing up emails, legal audits, and when employees leave a company, but it should be well-planned to avoid issues like incomplete ...

From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer ...

Microsoft has delayed the removal of the -Credential parameter from Exchange Online PowerShell until December 2026, giving ...

Microsoft has observed a surge in attacks using the ACR Stealer malware to steal browser-stored passwords, authentication ...

A solo Russian-speaking threat actor known as "bandcampro" outsourced a chunk of their operations to Google's open-source ...

Spirals ransomware can encrypt a network in under 24 hours. See how it uses IIS access, Windows tools, and double extortion ...

Microsoft and OEMs fixed key Secure Boot certificate issues for IT admins at a live office hours event, covering BIOS updates ...

These 4 Windows problems stumped Microsoft's tools—Claude solved them in seconds.

ACR Stealer campaigns use ClickFix lures, JPEG steganography, and WebDAV to steal browser tokens, passwords, PDFs, and synced ...

A new ransomware actor called Spirals completed a corporate intrusion, from initial access to data theft and encryption, in ...

Microsoft's 2026 lifecycle schedule includes major support deadlines for Windows, Office, SQL Server, SharePoint, and Azure ...