Satellite IoT enables organizations to monitor and control equipment beyond the reach of cellular and fixed communications infrastructure. It can keep data flowing between remote sensors, vehicles, machinery and applications, but it also introduces security considerations across several connected systems.
The satellite link is only one part of the data path. Devices, local networks, ground infrastructure, application integrations and user access can all introduce vulnerabilities.
This guide explains the principal risks and the measures that can help protect a satellite IoT deployment.
Where Are the Security Risks?
A satellite IoT system may include remote sensors or equipment, a controller or gateway, the satellite network, ground stations, data centers and the connection into the customer’s application. Security risks can arise at any of these points. They may include:
- Unauthorized access to devices or networks
- Interception or alteration of data
- Communications disruption
- Insecure software or configuration
- Physical damage or tampering
- Compromised user credentials
- Unclear responsibility between suppliers and operators.
Remote IoT devices can also become an entry point into a wider network if they are poorly protected. Security should therefore be considered across the full system, rather than treating the satellite connection in isolation.
1. Assess the Risks
Begin with an assessment of what the system connects, the information it carries and the consequences if that information is exposed, altered or unavailable.
Consider:
- What data the system collects
- How sensitive or operationally important it is
- Whether remote devices can control equipment
- Who needs access to devices and data
- How equipment will be maintained
- How the system will recover from an incident.
Human behavior should form part of this assessment. Staff, contractors and remote site personnel may change configurations, connect new equipment or remove network controls to solve an immediate operational problem. Clear procedures and training can help teams solve problems without unintentionally weakening the wider system.
It’s also sensible to plan on the basis that no individual security measure is infallible. Segmentation, monitoring, backups and recovery planning can limit the impact of a successful attack.
2. Define Security Responsibilities
Satellite IoT deployments often involve several organizations, including device manufacturers, satellite operators, connectivity providers, software platforms, integrators and the end customer.
Where systems are interconnected, responsibility can become unclear. Establishing ownership before deployment helps prevent security tasks from being overlooked.
Agree who is responsible for:
- Configuring devices and networks
- Managing user access
- Applying firmware and software updates
- Monitoring network activity
- Responding to security incidents
- Backing up data and configurations
- Meeting regulatory requirements.
This is especially important where third-party equipment or services form part of the complete solution.Ground Control holds ISO 27001 and Cyber Essentials certifications, reflecting the processes and controls used to protect information and systems.
Customer-Encrypted Data
Virtual Private Networks
Private Network Connections
Ground Control operates its own delivery infrastructure for supported Iridium and Viasat traffic. This allows us to offer options including configurable firewalls, public static IP addresses, VPNs and private connections.
The appropriate architecture will depend on the application. It’s important to ask the satellite network and connectivity providers how traffic is protected after it reaches the ground infrastructure, and before it arrives at the receiving server.
4. Protect Access to Your Data
Encryption can protect sensitive information as it travels between the remote equipment and the receiving application. For supported Iridium Short Burst Data applications, Ground Control can apply AES-256 payload encryption. This adds a small amount of data to each transmission, which should be considered when calculating message size and airtime use.
The protection available will depend on the satellite service, device and application architecture. Options may include payload encryption and security protocols such as:
- TLS
- IPSec
- DTLS
- VPN tunneling
Application-level encryption remains important because data may pass through gateways, data centers and customer networks after leaving the satellite link.
Segment and Monitor the Network
Connected assets should only be able to access the systems and services they require. Network segmentation and deliberate firebreaks can reduce the extent of any successful attack. Operational systems can be separated from corporate networks, remote sites can be isolated from one another, and firewall rules can restrict unnecessary connections.
Critical system data and configurations should also be backed up so that services can be restored following disruption.Routine monitoring helps teams identify problems early. Understanding normal connection patterns, site activity and data use makes it easier to spot unexpected behavior, new connections or unusual changes.
5. Keep Devices Protected
The security of the remote equipment is as important as that of the satellite network. When selecting hardware, consider whether it provides features such as:
- Encryption
- Secure boot
- Configurable firewalls
- Controlled administrative access
- Secure firmware and configuration management
RockREMOTE Rugged, for example, includes operating-system security and firewall capabilities that can help protect data traveling over satellite or cellular networks.
The wider deployment must also be considered. Sensors, cameras and other endpoint devices may introduce vulnerabilities if they use outdated components, unpatched software, insecure default settings or poorly protected network connections.
Remote devices should also be protected against physical tampering or damage. Compact or discreet equipment may attract less attention, although physical protection should always be supported by appropriate digital controls.
Control Access
Access to device firmware, configuration and other sensitive functions should be limited to authorized users. Use strong, unique credentials and multi-factor authentication where supported. Individual accounts and role-based permissions make it easier to control what each user can do and to identify who made a change.
Default passwords should be replaced before deployment, and accounts that are no longer required should be removed promptly.
Manage Updates and Configuration
A configuration-management process helps ensure that changes to devices and firmware are authorized and documented.
Equipment should be assessed regularly for vulnerabilities, with patches and software updates applied when needed. Before selecting hardware, confirm how updates will be delivered and how long the manufacturer expects to support the device.
Remote management can simplify this process for equipment installed in difficult or hazardous locations.
For compatible devices, Cloudloop Device Manager provides remote access to status, troubleshooting, configuration and supported firmware-management functions. This can help teams identify device issues and apply changes without visiting the site.
Satellite IoT Security Checklist
Before deploying a satellite IoT system:
- Assess risks across the complete data path
- Define security responsibilities
- Select an appropriate network architecture
- Encrypt sensitive data
- Restrict devices to the services they require
- Segment connected assets
- Replace default credentials
- Control access to configuration and firmware
- Back up critical data and settings
- Confirm how updates will be applied
- Monitor connections, usage and configuration changes
- Establish an incident response and recovery plan
Talk to a Satellite IoT Specialist
The appropriate security architecture will depend on the devices, network, data sensitivity and operational requirements of the deployment.
Ground Control can advise on satellite connectivity, encrypted data delivery, VPNs, private network options, firewall configuration and compatible remote-management capabilities.
Contact our team to discuss the security requirements of your satellite IoT application.