From smart homes to industrial automation, IoT devices have become ubiquitous in our daily lives. However, as the number of devices increases, so do the security risks. Hackers are constantly finding new ways to exploit vulnerabilities and gain access to sensitive information. This is where IoT device monitoring comes in – a crucial tool for businesses to keep their networks secure and their data safe.

With this in mind, let’s explore why IoT device monitoring is essential and how it can help organizations mitigate the risks associated with IoT devices.

What is IoT Device Monitoring?

IoT device monitoring involves tracking and analyzing the behavior of Internet of Things (IoT) devices and using that data to gain insights into the health, performance, and security of those devices. In short, it helps you provision, monitor, and maintain the growing sprawl of connected devices in your organization, and it’s becoming increasingly vital in today’s ever-connected world.

With the growing complexity of IoT ecosystems, it’s crucial to maintain robust control over the devices in your network and how they’re being used. When you have many connected devices, it’s easy for something to go wrong. Whether it’s a malfunctioning sensor, a compromised device, or a network outage, any disruption can have severe impacts on your business.

IoT device monitoring typically involves a range of activities, including:

1. Real-time data collection: IoT device monitoring systems collect data from devices in real time, often using sensors or other types of monitoring tools.
2. Performance analysis: Data collected from IoT devices can be analyzed to understand how well devices are performing, including factors such as response time, uptime, and energy consumption.
3. Predictive maintenance: By monitoring IoT devices, it’s possible to identify potential problems before they occur, enabling organizations to take preventive measures and minimize downtime.
4. Security monitoring: IoT device monitoring can also help detect and prevent security breaches, such as unauthorized access to IoT devices or data theft.

What is IoT Device Management?

There are over 15 billion connected IoT devices worldwide, and the number of active IoT devices is expected to double by 2030. With this surge in IoT devices, organizations are under increasing pressure to manage and maintain these devices or risk broken connected systems or cyberattacks. This is where IoT device management comes in. It comprises both the technologies and processes you need to govern your IT landscape.

Here are some of the critical components of IoT device management:

• Device onboarding: IoT devices require onboarding to the network, involving steps like credential checks and assigning device identity.
• Device configuration: Each device needs to be configured according to business needs, such as grouping devices based on the area of operation.
• Operational diagnostics: Diagnostics offer valuable insights, but most devices lack the resources to analyze them, requiring centralized management.
• Device security: IoT device management applies necessary security protocols, bringing all endpoints under organizational oversight.
• Device maintenance: Maintenance includes updating firmware and watching for security vulnerabilities, performed in bulk via over-the-air (OTA) updates.
• End-of-life: End-of-life policies specify how to retire devices, decommissioning steps, and recycle materials for a minimal carbon footprint.

IoT device monitoring and IoT device management are closely related, but not interchangeable. IoT device monitoring falls under IoT device management, which is a more comprehensive approach to all things IoT.

The Shadow IoT Risk

IoT devices have proven to be incredibly useful, but they do come with unique challenges that network administrators must be wary of. One of the most significant issues is that these devices can seamlessly join any wireless network, allowing them to be installed without prior authorization from IT. This is known as Shadow IoT, a common problem in many organizations.

The trouble with Shadow IoT devices is that they don’t support additional software installs, and they don’t use typical network monitoring methods like SNMP, making them difficult to detect. When these devices go unnoticed, they can increase your attack surface, leaving you vulnerable to attack. Upgrading the device’s OS or firmware can also be a painful task, making it challenging to stay on top of device security.

But the risks of Shadow IoT don’t end there. These unmanaged devices can cause network issues, leading to slow performance or outages. They may also violate compliance regulations, leading to hefty fines and damage to the company’s reputation.

How To Secure IoT Devices

Securing IoT devices is no easy feat, but it’s vital in today’s increasingly severe threat landscape. One technique gaining prominence is IoT fingerprinting.

IoT fingerprinting involves identifying and profiling IoT devices on a network by analyzing their unique attributes, such as device type, operating system, firmware version, or even specific vendor characteristics. This allows network administrators can gain valuable insights into their IoT ecosystem and improve their overall security posture. In addition, IoT fingerprinting is particularly useful for detecting Shadow IoT devices that may be lurking on the network and not visible through traditional network monitoring methods.

Beyond IoT fingerprinting, here are some essential techniques to help ensure IoT device security:

1. Encryption: Always use encryption to secure data transmission and storage on IoT devices.
2. Authentication: Use robust authentication protocols to verify device identity, user credentials, and device-to-device communication.
3. Access control: Implement strict access controls to limit access to IoT devices based on user roles and permissions.
4. Regular monitoring: Continuously monitor your IoT devices to detect and respond to any security threats or anomalies.
5. Firmware updates: Keep your IoT devices up-to-date with the latest firmware updates to patch vulnerabilities and address security issues.
6. Physical security: Physically securing IoT devices can help prevent theft, tampering, or unauthorized access. Consider using locks or security cages for devices in public areas or high-risk environments.
7. Network segmentation: Segregate your IoT devices from other parts of your network to prevent attackers from moving laterally across your environment in the event of a successful attack.
8. Behavioral analysis: Analyze the behavior of IoT devices to identify potential anomalies or threats. This can help you detect suspicious activity and take action before any damage occurs.
9. Vulnerability scanning: Conduct regular vulnerability scans on your IoT devices to identify and remediate potential security risks.
10. Incident response planning: Have a comprehensive incident response plan for IoT security incidents, including roles and responsibilities, escalation paths, and communication protocols.

Final Thoughts

IoT devices are here to stay, which means we need to start taking a more dedicated and proactive approach to ensuring IoT security. Without IoT device monitoring and management, organizations leave themselves vulnerable to a wide range of potential threats, including data breaches and system outages. Fortunately, with the right combination of policies, processes, and technology, organizations can effectively secure their IoT devices and minimize risk.

The proliferation of smartphones has long been underway, giving hackers potent and growing avenue for infiltrating corporate networks: the very devices carried by employees. As the use of personal smartphones for work purposes becomes increasingly prevalent, hackers are capitalizing on this trend, exploiting vulnerabilities in mobile devices to gain unauthorized access to sensitive corporate networks. Below, we shed light on the tactics employed by these hackers and emphasizes the critical need for organizations to enhance their mobile security posture.

Threat Landscapes Are Becoming More Mobile

Mobile devices, especially smartphones, have become an integral part of our personal and professional lives. These devices are goldmines for sensitive data, making them an attractive target for cybercriminals seeking unauthorized access to corporate networks. Employees often use their smartphones for work-related activities, such as accessing corporate email, documents, and applications. Hackers recognize this reliance and seek to exploit vulnerabilities in mobile devices as a means to breach corporate defenses.

Some of the common techniques hackers use to conduct this activity include:

• Malware and Malicious Apps: Hackers leverage malware and malicious apps to compromise smartphones and establish a foothold within the corporate network. These malicious programs can be disguised as legitimate apps, enticing unsuspecting users to install them. Once installed, they can grant attackers access to sensitive data, capture keystrokes, or initiate unauthorized communications.
• Phishing Attacks: Phishing techniques that are effective on desktops are equally potent on smartphones. Hackers employ deceptive emails, text messages, or social media posts to trick employees into revealing login credentials or downloading malicious content. The smaller form factor and potential for distraction on mobile devices make it easier for users to fall victim to these attacks.
• Network Spoofing: Wi-Fi networks have become an integral part of our mobile experience, but they also present an avenue for attackers. Hackers can create rogue Wi-Fi networks that mimic legitimate ones, tricking users into connecting to them. Once connected, attackers can intercept and manipulate network traffic, capturing sensitive information or injecting malware.
• OS and App Vulnerabilities: Operating systems and applications running on smartphones are not immune to vulnerabilities. Hackers exploit these weaknesses by leveraging known vulnerabilities or developing zero-day exploits to gain control over the device. From there, they can pivot into the corporate network, compromising data and systems.

Preventing Unauthorized Access in a Mobile-Heavy World

Organizations must adopt a multi-faceted approach to mitigate the risks associated with employee smartphones. This approach can and should incorporate the following tools and measures:

• Mobile Device Management (MDM): Implementing an MDM solution allows organizations to enforce security policies, manage device configurations, and remotely wipe corporate data from lost or stolen devices. MDMs also facilitate timely updates and patches, reducing the risk of exploitation.
• User Education and Awareness: Conduct regular training sessions to educate employees about mobile security best practices. Teach them to recognize and report suspicious emails, texts, or apps. Promote the use passwordless authentication and encrypted communication channels.
• Mobile App Security: Employ rigorous vetting and testing processes for mobile apps used within the organization. Encourage employees to download apps from reputable sources and avoid third-party app stores. Promptly update apps to ensure they are free from known vulnerabilities.
• Network Security: Organizations should implement robust network security measures, including network access control, which can regulate authentication to the network and segment users based on their role, device type, location and more. IT security teams should also regularly scan for rogue Wi-Fi networks and ensure employees are educated on safe Wi-Fi usage practices.

How Can Network Access Control (NAC) Help Here?

NAC solutions can play a critical role in mitigating the risk of unauthorized access to a corporate network through an employee’s smartphone. By implementing NAC, organizations can enforce stringent access policies and strengthen their security perimeter. Specifically, there are several unique NAC capabilities that address this issue head-on:

• Device Authentication and Profiling: NAC solutions authenticate devices before granting access to the network. When an employee’s smartphone connects to the network, the NAC solution verifies its identity and ensures it meets the organization’s security standards. This process helps identify and isolate unauthorized or compromised devices, preventing them from gaining access to sensitive resources.
• Endpoint Security Checks: NAC solutions conduct comprehensive endpoint security checks to ensure smartphones meet the organization’s security requirements. These checks can include verifying the presence of up-to-date antivirus software, patched operating systems, and approved security configurations. If a smartphone fails to meet the criteria, it can be denied access or redirected to a restricted network segment until the security issues are resolved.
• Role-Based Access Control (RBAC): NAC solutions enable organizations to enforce granular access policies based on user roles, device types, and other contextual factors. By utilizing RBAC, organizations can restrict the access of employee smartphones to specific resources or segments of the network, reducing the potential attack surface. For example, an employee’s smartphone may be limited to accessing email and a few approved applications but restricted from accessing sensitive databases.
• Continuous Monitoring and Enforcement: NAC solutions continuously monitor devices and their activities while connected to the network. They can detect suspicious behavior, such as abnormal data transfers, unauthorized access attempts, or the presence of malicious applications. If such activities are detected, the NAC solution can automatically quarantine or remediate the affected device, minimizing the impact of potential security breaches.
• Integration with Mobile Device Management (MDM): Integrating NAC with MDM solutions enhances the overall security posture. As mentioned above, MDM solutions provide centralized management and control over mobile devices, ensuring they comply with security policies, receive necessary updates, and have proper security configurations. NAC can leverage MDM data to make more informed access decisions, dynamically adapting network access based on the device’s compliance status and security posture.
• Guest and BYOD Segregation: NAC allows organizations to segregate guest and Bring Your Own Device (BYOD) networks from the main corporate network. By isolating guest and personal devices, the potential risk posed by compromised smartphones is contained, limiting their ability to access critical resources. NAC solutions can enforce different security policies and provide restricted access for these segregated networks.
• Threat Intelligence Integration: NAC solutions can integrate with threat intelligence feeds to enhance their detection capabilities. By leveraging up-to-date threat intelligence, the NAC solution can identify devices associated with known malicious activities or IP addresses, proactively blocking access to prevent potential security incidents.

A robust NAC solution provides organizations with the means to secure their corporate network from unauthorized access via employee smartphones. By enforcing strong authentication, conducting comprehensive security checks, implementing RBAC, continuously monitoring devices, integrating with MDM, segregating guest and BYOD networks, and leveraging threat intelligence, NAC helps thwart hackers’ attempts, ensuring the integrity and confidentiality of corporate resources.