The Red Phone Signal: Critical Alerting for Enterprise Security

The Red Phone Protocol is an emergency response procedure designed to be executed ONLY during an active, critical security incident (e.g., a lost/stolen device containing unencrypted PII, or a confirmed account takeover). Unlike standard maintenance tasks, this protocol bypasses standard “soft” locks and initiates an immediate, irreversible lockdown of the targeted assets. The goal is rapid data destruction and hardware isolation to prevent exfiltration.

Triggering Criteria

Activating the Red Phone Protocol is a destructive action. It should strictly be triggered under the following conditions:

• Confirmed Theft: Physical theft of a corporate-owned device while in an unlocked or vulnerable state.
• Insider Threat: Notification of immediate termination for a high-privilege user displaying hostile intent.
• Compromised Credentials: Concrete evidence that a device’s local admin privileges or MFA have been bypassed.

The Execution Matrix

The protocol performs a synchronized sequence of actions via the Hexnode UEM console.

How to Execute (UEM Emergency Script)

CRITICAL WARNING: To ensure the target device receives the wipe command, the Complete Device Wipe (Step 1) must be triggered before any local custom scripts (Step 2) sever the device’s internet connection.

Step 1: Rapid Device Group Isolation (The “Red Button”)

To ensure all compromised assets receive the lockdown commands simultaneously, consolidate the target devices into a dedicated emergency group within the Hexnode console.

1. Identify the Targets: Navigate to Manage > Devices in the Hexnode portal. Search for and check the boxes next to all devices involved in the breach.
2. Create the Incident Group: Click on the Actions dropdown and select Add to Group. Create a new static Device Group with a highly visible, urgent name (e.g., INCIDENT-ACTIVE-BREACH).
3. Target the Group: Navigate to Manage > Device Groups and click on your newly created incident group to open its management page.
4. Trigger the Protocol: Click on the Actions dropdown and select Wipe Device.
5. Confirm the Wipe: Follow the on-screen prompt to confirm the action (this may require re-entering your admin credentials). Hexnode will immediately queue the Complete Device Wipe command to all devices within the incident group via APNs, FCM, or WNS.

Step 2: Run the Emergency Local Script (Failsafe)

In the event the device is offline, or the wipe command is delayed, deploy the “Red Phone” failsafe script via Hexnode’s Execute Custom Script action. This script invalidates the local session and violently cuts off network access.

macOS/Linux Snippet (#!/zsh):

Post-Protocol Recovery

Because the Red Phone Protocol is designed for scorched-earth security, recovery is a highly manual process:

• Hardware Retrieval: Physical possession of the asset must be secured.
• Firmware/Activation Unlock: The technician must enter the randomized BIOS/EFI password or clear the Activation Lock directly from the Hexnode console.
• Re-imaging: The device OS is unrecoverable. It must be completely wiped and reinstalled via Apple Automated Device Enrollment (ADE) or Windows Autopilot.

Audit & Documentation

Every execution of the Red Phone Protocol automatically generates an Incident Audit Log in the Hexnode Action History, capturing:

• The Timestamp of the trigger.
• The Technician (Admin) who authorized the script execution.