Using Windows 365 Cloud PC's for your PAW Needs

Windows 365 is your workplace from the cloud - a Windows machine running in a Microsoft datacenter, that you can acccess from everywhere, anytime. And as it’s Intune-managed, you can configure it anyway you like.

That brings some cool possibilities. What if you need a PAW - a Priviliged Access Workstation - that you can use to do all your administrative tasks in a secure way?

PAW Principles

A Privileged Access Workstation is built around several core security principles that protect administrative credentials and operations:

1. Isolation from untrusted networks - The PAW must be isolated from general-purpose devices and potentially compromised networks
2. Reduced attack surface - Only essential services and applications should be installed, with all unnecessary features disabled
3. Strong authentication and authorization - All administrative access must require multi-factor authentication and proper authorization controls
4. Separation of administrative identity - Administrative accounts must be separate from user accounts, preventing credential reuse across contexts
5. Endpoint protection and monitoring - Continuous monitoring, malware protection, and activity logging must be enabled
6. Restricted data flow - Copy/paste, USB redirection, and other data exfiltration vectors must be controlled
7. Compliance and configuration management - The PAW must be managed centrally with enforced configurations and compliance policies

Mapping PAW Principles to Windows 365

1. Isolation Through Conditional Access

Windows 365 Cloud PC’s can be accessed only through devices that meet specific security requirements using Entra ID Conditional Access policies. This ensures that administrative access is only available from compliant, managed devices.

Learn how to implement Conditional Access policies to restrict access based on device compliance, location, and authentication method. You can enforce that only devices enrolled in Intune and meeting specific security baselines can access your Cloud PC running administrative workloads.

Implementation guidance: Configure Conditional Access to require device compliance, and use device filters to ensure only approved devices can initiate RDP connections to your PAW environment.

2. Reduced Attack Surface via Intune Configuration Profiles

Windows 365 Cloud PC’s are managed by Microsoft Intune, allowing you to enforce minimal, hardened configurations that reduce the attack surface.

Device Security Baselines:

• Deploy Windows 365 custom profiles to enforce security settings
• Use Windows security baselines in Intune to apply Microsoft-recommended security configurations
• Disable unnecessary Windows features and services to reduce exposure
• Configure Windows Defender Firewall rules to restrict network connectivity to only required services

Application Restrictions:

• Implement Microsoft Intune app protection policies to control which applications can run
• Use Intune app configuration policies to harden application behavior
• Deploy only approved administrative tools and completely restrict consumer applications

3. Strong Authentication: Multi-Factor Authentication & Password Requirements

Enforce strong authentication mechanisms that prevent unauthorized access even if credentials are compromised.

Entra ID Integration:

• Require Multi-Factor Authentication (MFA) for all access to the PAW Cloud PC
• Configure passwordless sign-in options such as Windows Hello for Business
• Use Conditional Access policies to require MFA for all administrative sessions

Local Security:

• Configure Windows Local Administrator Password Solution (LAPS) to manage local administrator passwords with automated rotation
• Enforce complex password policies on the Cloud PC

4. Administrative Identity Separation

One of the core PAW principles is separating administrative identities from user identities, preventing the reuse of credentials across different privilege levels.

Implementation:

• Configure Just-in-Time (JIT) privileged access through Entra ID Privileged Identity Management (PIM)
• Use Entra ID PIM to enforce time-limited administrative access with approval workflows
• Create separate Entra ID groups and Dynamic Group Membership rules for administrative activities
• Assign the PAW Cloud PC exclusively to administrative accounts, never to standard user accounts

5. Restricted Data Flow & Copy/Paste Control

Preventing data exfiltration is critical for a PAW. Windows 365 allows fine-grained control over what can move between the host device and the Cloud PC.

Remote Desktop Protocol (RDP) Redirection Control:

• Implement Intune device restriction profiles to disable USB redirection to the Cloud PC

Copy/Paste Restrictions:

• Configure session restrictions to disable clipboard redirection between the host and Cloud PC
• Apply Intune policies to prevent sensitive administrative data from being accidentally copied to the user’s corporate or personal devices

6. Endpoint Protection and Detection

Continuous monitoring and protection capabilities ensure threats are detected and mitigated in real-time.

Windows Defender Integration:

• Enable Microsoft Defender for Endpoint on the Cloud PC for advanced threat detection and response
• Deploy Windows Defender Antivirus with cloud protection enabled
• Configure Windows Defender SmartScreen to protect against malicious websites and files

Behavior-Based Prevention:

• Implement keylogger and screen capture prevention through Intune device restrictions by disabling local input devices over RDP
• Enable exploit protection to defend against attacks leveraging system vulnerabilities
• Use attack surface reduction rules to block common attack vectors

Monitoring and Auditing:

• Enable Windows Event Logging for all administrative actions
• Forward logs to Azure Sentinel or Log Analytics for centralized monitoring and threat detection
• Configure Privileged Identity Management audit logging to track all administrative access

7. Context-Based Redirection & Session Isolation

Windows 365 can intelligently route administrative sessions through secure channels and enforce additional controls based on session context.

Conditional Routing:

• Use Entra ID security controls to detect unusual access patterns and trigger additional authentication challenges
• Implement Risk-based Conditional Access policies to block or challenge suspicious sign-in attempts
• Configure Named Locations to allow PAW access only from approved office networks or VPN connectors

Session Management:

• Use Entra ID Sign-in and Audit Logs to monitor Cloud PC access patterns
• Implement Conditional Termination policies to automatically end sessions after inactivity
• Enable Real-time risk detection to identify and respond to compromised credentials

8. Compliance & Centralized Management

Windows 365 Cloud PC’s are managed entirely through Intune, providing centralized policy enforcement and compliance reporting.

Device Compliance:

• Create Intune device compliance policies that require:
  • Antivirus protection enabled
  • Windows Defender Firewall active
  • Disk encryption (BitLocker) enabled
  • Up-to-date security patches
  • No jailbroken or rooted devices accessing the network

Configuration Management:

• Use Intune policy sets to group security baseline profiles, compliance policies, and application deployments
• Deploy Microsoft Defender for Cloud Apps conditional access rules for app-level access control
• Implement Mobile Device Management (MDM) enrollment for the Cloud PC to enable full lifecycle management

Reporting & Auditing:

• Use Intune Reports to verify compliance with security baselines and policies
• Monitor Entra ID activity logs for administrative access patterns
• Create custom Power BI reports for detailed PAW usage and compliance tracking

Additional Security Hardening Considerations

Networking & Zero Trust:

• Deploy Entra ID Multi-tenant B2B controls if administering multiple organizations
• Use Azure Firewall or Network Security Groups to segment administrative networks

Threat Response:

• Enable Advanced Threat Detection to automatically block suspicious administrative commands and scripts
• Configure Automated Investigation and Response (AIR) to respond to detected threats
• Use Incident Response playbooks for rapid remediation

Conclusion

Windows 365 Cloud PC’s provide an excellent foundation for implementing a robust Privileged Access Workstation solution. By leveraging Entra ID Conditional Access, Intune configuration profiles, identity governance through PIM, and endpoint protection capabilities, organizations can create a highly secure, isolated environment for administrative work. This approach combines cloud convenience with enterprise-grade security controls, ensuring that privileged operations are protected from modern threats while remaining accessible to authorized administrators.