Microsoft Plugs Nearly 1,000 Security Holes
Microsoft Corp. today issued updates to plug at least 974 security holes in its Windows operating systems and other software, by far its biggest single patch...
Microsoft
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Patch Tuesday - September 2026
Microsoft is publishing 974 own-product vulnerabilities on September 2026 Patch Tuesday, including 723 vulnerabilities in Windows. Along with Microsoft fixes...
September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)
This month, Microsoft released patches for a record-breaking 973 vulnerabilities, including 113 rated critical. It is by far the largest Patch Tuesday to dat...
Microsoft Patches Record 974 Vulnerabilities, Including Two Exploited Zero-Days
The record-breaking September security update fixes two exploited privilege-escalation zero-days and 20 potentially wormable vulnerabilities. The post Micros...
Microsoft Patch Tuesday, September 2026 Security Update Review
Microsoft kicks off September with its monthly Patch Tuesday release, delivering fixes for security vulnerabilities affecting its products. The security upda...
Microsoft releases Windows 10 KB5122878 extended security update
Microsoft has released the Windows 10 KB5122878 extended security update, which includes this month's record-breaking September 2026 Patch Tuesday fixes, alo...
Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days
Today is Microsoft's September 2026 Patch Tuesday, with security updates released for a record-breaking 966 flaws, including two actively exploited zero-day ...
Microsoft’s September 2026 Patch Tuesday addresses 964 CVEs (CVE-2026-81963, CVE-2026-85880)
104Critical 860Important 0Moderate 0Low Microsoft addresses 964 CVEs, smashing July’s release as the largest Patch Tuesday release. This month’s updates incl...
Windows 11 cumulative updates KB5124008 & KB5122880 released
Microsoft has released Windows 11 KB5124008 and KB5122880 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add n...
August updates trigger 0xc0000409 errors on Windows Server 2016
Microsoft says the August 2026 security update may trigger 0xc0000409 errors on Windows Server 2016 systems where the Compatibility Appraiser diagnostic serv...
Hackers Impersonate IT Support on Microsoft Teams to Take Control of Employee PCs
A human-operated intrusion campaign in which attackers abuse Microsoft Teams external collaboration to impersonate internal IT or helpdesk staff, persuade em...
CISA Adds Four Known Exploited Vulnerabilities to Catalog
CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.
Microsoft: Windows Server 2025 changes causing app crashes
Microsoft warned customers last week that they may experience application crashes on some Windows Server 2025 due to recent memory management changes. [.
IT help-desk vishing tricks executives into handing over Microsoft 365 access
IT help-desk vishing calls, stolen session tokens, and sign-ins routed through residential proxies are behind a wave of data theft and extortion against Micr...
BigBear 2.0 phishing campaign hijacks Microsoft 365 sessions after MFA
A phishing-as-a-service operation targeting Microsoft 365 users has harvested thousands of session cookies that could be used to hijack authenticated session...
The 12 Best Antivirus (Endpoint Protection) Software for Business, Compared and Priced
Best value overall: Microsoft Defender for Endpoint — if you hold Microsoft 365 E5, you already own competitive enterprise endpoint protection and the margin...
BigBear 2 PhaaS Campaign Steals 5000+ Microsoft Credentials
CloudSEK has uncovered BigBear 2.
Hackers Create Domain Admin Account and Disable Security Tools Inside Windows Network
A newly documented ransomware intrusion attributed to The Gentlemen shows how attackers can convert a foothold in a Windows environment into domain-wide cont...
IT Help Desk Impersonation Lets Hackers Bypass MFA
Attackers bypass endpoint security by posing as IT staff, stealing Microsoft 365 sessions, draining SaaS data and demanding extortion. Forget installing malw...
Panzer Ransomware Emerges With Windows, Linux, ESXi and FreeBSD Attack Support
A newly identified ransomware-as-a-service operation, Panzer, has surfaced with advertised payload support for Windows, Linux, VMware ESXi and FreeBSD, posit...