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Microsoft says it mistakenly marked a bug affecting Always On VPN connections as resolved in the October 2026 Patch Tuesday cumulative updates for Windows 11. The status was reverted to Mitigated, and a permanent fix is planned for an update "in the coming weeks". The issue first appeared after the September 2026 security updates on Windo…
Microsoft has fixed a known issue in the classic Outlook desktop client for Windows that hid the Copilot Chat and Copilot buttons for users with a Copilot Chat (Basic) or Microsoft 365 Copilot (Premium) license. Microsoft first announced a fix in June through a service change, but the bug resurfaced after recent updates and was investigat…
Microsoft has confirmed that the October 2026 Windows Server security updates cause Outlook on the web (OWA) sign-in failures and mail delivery problems on some on-premises Exchange Server systems. Affected hosts run Windows Server 2019 and later. Messages sent from Outlook may stay in the Outbox, and Exchange may have trouble accessing m…
Microsoft has fixed a known issue in which games and Windows 11 apps using AC-3 (Dolby Digital) audio decoding crashed after the September 2026 optional preview update KB5124010. The fix is included in the October 2026 Patch Tuesday update KB5127648, which Microsoft advises installing on affected systems running Windows 11 24H2 and later.…
Microsoft announced that quick machine recovery (QMR) is now available on Windows Server 2025 after installing the October 2026 security update. The feature lets IT administrators fix critical boot failures through targeted Windows Update remediations, without physical access to affected systems. QMR was introduced in November 2024 under …
Nikkei Inc. disclosed a third data breach in about a month, exposing 1.83 million records stored in the cloud. Attackers used stolen credentials to access a development system in the early hours of October 7. About 150,000 records contained at least one of: full names, email addresses, physical addresses, phone numbers or dates of birth, …
ConnectWise shut down its Cloud Backup service (formerly SkyKick Cloud Backup) after an attacker gained unauthorized access to application identities and used them to compromise Microsoft 365 tenants. Huntress identified at least 162 compromised tenants in its environment, and Microsoft Threat Intelligence characterized the incident as an…
