Microsoft released its August security update this week, patching 622 vulnerabilities across Windows, Microsoft 365, Exchange Server, SharePoint Server and Azure.

• What it is: August's Patch Tuesday update addresses hundreds of security flaws across Microsoft's core business software, alongside feature updates to Windows 11 such as improved sign-in security and File Explorer changes.
• Who is affected: Any business running Windows 11, Windows Server, on-premises Exchange or SharePoint servers, or Microsoft 365 apps.
• What the risk is: Unpatched systems remain exposed to vulnerabilities that attackers actively target once technical details become public, often within days of a release.
• What action is needed: Confirm Windows Update and Microsoft 365 updates are enabled and applying automatically. Businesses running on-premises Exchange or SharePoint servers need to schedule manual patching.

We recommend checking that critical business systems are behaving normally after this update is applied, and reaching out if a device or server shows issues afterwards.