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81 Security Patches + Windows 10’s Final Countdown: What Every Business Owner Must Know

81 Security Patches + Windows 10’s Final Countdown: What Every Business Owner Must Know

Update: 2025-09-11
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September 2025 Patch Tuesday Show NotesSeptember 2025 Patch Tuesday: Critical Business Update

Special Edition with Graham Falkner

Microsoft’s September Patch Tuesday brings 81 security fixes, including 9 critical vulnerabilities already being exploited by attackers. This episode provides essential business guidance for small business owners navigating these updates safely and efficiently.

Key Topics Covered:
  • Business impact of 81 security vulnerabilities
  • Four critical threats affecting small businesses
  • SharePoint Server active exploitation campaigns
  • Network authentication bypass vulnerabilities
  • 7-day practical deployment strategy
  • Windows 10 end-of-life planning (October 14th deadline)
  • Cyber Essentials compliance requirements
Critical Action Items:
  • Days 1-2: Assess SharePoint installations and document processing systems
  • Days 3-7: Deploy controlled testing and priority system updates
  • Days 8-14: Complete production environment deployment
  • Immediate: Audit all Windows 10 devices and plan migration
Windows 10 Urgent Notice:

Support ends October 14th, 2025. This may be the final security update for Windows 10 systems. Extended Security Updates available at significant cost. Migration planning required immediately.

Compliance Requirements:

Cyber Essentials certified organisations must deploy updates by September 23rd, 2025. Earlier deployment recommended for business risk management.

Vulnerable Systems Requiring Priority Attention:
  • SharePoint Server installations (under active attack)
  • Systems processing external documents and email attachments
  • Network authentication infrastructure
  • Customer data handling environments
Known Compatibility Issues:
  • PowerShell Direct connection failures in virtualised environments
  • SMB signing requirements affecting older network storage
  • MSI installer UAC prompt changes
Sources:
  • Microsoft Security Response Center - September 2025 Security Updates
  • Verizon 2024 Data Breach Investigations Report
  • UK GDPR Article 32 - Security of Processing Requirements
  • Cyber Essentials Certification Guidelines
Resources:

Comprehensive deployment guides, compatibility checklists, and Windows 11 migration planning available at: thesmallbusinesscybersecurityguy.co.uk

Technical support documentation: Microsoft KB5065426, KB5065431, KB5065429

Next Steps:

Subscribe for regular cybersecurity updates. Share with business owners who need this information. Visit our website for detailed implementation guidance.

This episode provides educational information only. Always implement cybersecurity measures appropriate to your specific business needs and risk profile.

Hashtags:

#CyberSecurity #SmallBusiness #Windows10 #PatchTuesday #Microsoft #BusinessSecurity #ITSecurity #CyberEssentials #Windows11 #SecurityUpdates #BusinessContinuity #UKBusiness #Compliance #GDPR #CyberInsurance #NetworkSecurity #SharePoint #BusinessTech #InfoSec #DigitalSecurity

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81 Security Patches + Windows 10’s Final Countdown: What Every Business Owner Must Know

81 Security Patches + Windows 10’s Final Countdown: What Every Business Owner Must Know

The Small Business Cyber Security Guy