Device Security Posture Assessment

1. Prerequisites

• Lost or stolen device incident
• Completion of Lost & Stolen Device Validation
• Access to MDM platform
• Access to EDR platform
• Access to asset inventory
• Access to Identity Provider (IdP)
• Access to device management records
• Device identifier available:
  • Hostname
  • Serial number
  • Asset tag
  • Mobile device identifier
• Incident ticket created

2. Step-by-Step Instructions

1. Identify Device Details

   • Confirm:
     • Device type
     • Asset owner
     • Operating system
     • Device management status
   • Document device information.

2. Validate Device Enrollment Status

   • Determine whether the device is enrolled in:
     • MDM
     • EDR
     • Asset management systems
   • Document management coverage.

3. Review Encryption Status

   • Verify:
     • Full disk encryption status
     • Encryption technology in use
     • Encryption key escrow status
   • Document findings.

4. Review Endpoint Security Controls

   • Determine whether the device has:
     • EDR protection
     • Antivirus protection
     • Firewall enabled
     • Device control policies
     • Application control policies
   • Document security controls present.

5. Review Authentication Controls

   • Determine:
     • MFA requirements
     • Device trust status
     • Conditional access policies
     • Privileged account usage
   • Document authentication protections.

6. Review Remote Management Capabilities

   • Verify availability of:
     • Remote lock
     • Remote wipe
     • Device location tracking
     • Remote access revocation
   • Determine available containment options.

7. Review Compliance Status

   • Determine whether the device complies with:
     • Security baselines
     • Patch requirements
     • Encryption requirements
     • Device management requirements
   • Document non-compliance findings.

8. Assess Security Risk

   • Evaluate:
     • Likelihood of compromise
     • Likelihood of data exposure
     • Effectiveness of existing controls
     • Ability to contain the device remotely
   • Assign a risk rating.

9. Determine Recommended Actions

   • Identify required actions including:
     • Account containment
     • Session revocation
     • Remote lock
     • Remote wipe
     • Additional investigation
   • Document recommendations.

10. Escalate and Hand Off

    • Provide findings to the Incident Commander and Technical Lead.
    • Escalate to:
      • Device Data Exposure Assessment
      • Remote Device Lock & Wipe
      • Account containment activities
    • Update the incident record with all findings.

3. Post-Action

• Ensure all device security controls are documented.
• Ensure encryption status is recorded.
• Document all identified security gaps.
• Attach assessment findings to the incident record.
• Preserve supporting evidence and screenshots where applicable.
• Ensure recommended containment actions are tracked to completion.

Contributor

Vishal Thakur GitHub: https://github.com/malienist

Contributed to the Arcana Incident Response Documentation Framework.