National Public Safety Telecommunications Council
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Microsoft and Apple Release April Security Updates
SAFECOM Cybersecurity Advisory Banner
Microsoft has released security updates to patch 100 security holes in its Windows operating system and other software, including a zero-day vulnerability that is already being used in active attacks against public safety agencies.  This release consists of security updates for software including:
  • .NET Core
  • Azure Machine Learning
  • Azure Service Connector
  • Microsoft Bluetooth Driver
  • Microsoft Defender for Endpoint
  • Microsoft Dynamics
  • Microsoft Dynamics 365 Customer Voice
  • Microsoft Edge (Chromium-based)
  • Microsoft Graphics Component
  • Microsoft Message Queuing
  • Microsoft Office
  • You can view the entire list of affected software here and the security updates deployment information here.
    In addition, Apple has released a set of important updates addressing two zero-day vulnerabilities that are being used to attack iPhones, iPads, and Macs that are used by public safety agencies.  You can view the entire list of Apple security updates here.
    We strongly encourage you to apply the recommended mitigations in this advisory, and sign up for U.S. Computer Emergency Readiness Team (US-CERT) alerts at to receive timely, important updates.  Visit the public safety cyber webpage at for additional cyber and communications resiliency resources.
    Thank you for your continued support.
    Major George Perera
    Miami-Dade Police Department
    Chair, SAFECOM Cybersecurity Working Group
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