The adoption of IoT devices in industrial environments grows every year, bringing gains in efficiency, automation, and connectivity. However, this advancement also expands the attack surface, placing machines, critical systems, and sensitive data at risk.
In this scenario, ACTAR acts as a strategic partner, offering specialized solutions in OT & IoT Security that guarantee not only the protection of connected assets, but also operational continuity and cyber resilience.
With an end-to-end consulting approach, ACTAR combines market expertise, cutting-edge technology, and global partners to deliver effective security strategies.
From Cyber OT assessment, through the creation of protection policies, to the implementation of industry-leading solutions, our mission is to optimize the security of connected industrial and medical devices.
What are industrial IoT devices?
Industrial IoT devices are equipment connected to critical infrastructure networks that collect, transmit, and analyze data in real time. They are present in networks containing machines, sensors, automation systems, and even medical devices, depending on the scenario. Their purpose is to increase operational efficiency, improve production processes, and provide greater visibility to companies.
Definition and differentiation between IoT and OT
- IoT (Internet of Things): refers to devices that primarily connect ordinary devices to other objects and cloud applications and, given their connectivity, exchange data with each other. In industrial environments, they are responsible for connecting machines and devices in industries such as manufacturing, transportation, mining, ports, etc.
- OT (Operational Technology): encompasses the systems and hardware that control physical processes, such as production lines, critical equipment, and energy systems. Unlike IoT, OT’s focus is on ensuring operational availability and reliability.
While IoT prioritizes connectivity and data exchange, OT requires uninterrupted security and continuity. Together, they form an ecosystem that needs integrated protection.
Discover how ACTAR transforms security in the industrial sector.
Key risks and vulnerabilities in industrial environments
The digitalization of industries and their connection to the IT environment has brought numerous benefits, but has also increased risks. The main areas of concern include:
- Lack of visibility over all connected devices.
- Use of legacy systems without security updates.
- Weak passwords or default configurations maintained on critical equipment.
- Unencrypted data traffic.
- Human errors in the operation and management of systems.
See also: OT Asset Management: Ensuring Security and Efficiency in the Digital Age
Common types of attacks on industrial IoT devices
- Ransomware: data hijacking and blocking of critical machines until a ransom is paid.
- Denial-of-service attacks (DDoS): overloading connected IoT devices, leading to shutdown.
- Unauthorized access: exploitation of weaknesses in passwords and basic configurations.
- Operational data manipulation: tampering with information that controls production processes.
Consequences for production, physical security, and reputation
- Production disruption and significant financial losses.
- Compromise of the physical safety of employees and the industrial environment.
- Loss of market trust and damage to brand reputation.
- Impact on the entire supply chain and end customers.
Challenges in IoT and OT security
Security in environments that combine the Internet of Things (IoT) and Operational Technology (OT) faces unique and complex challenges. The convergence of these technologies, while bringing greater visibility and control, significantly expands the attack surface of industrial operations.
This is because the integration of varied devices — many with limited native security capabilities — requires customized approaches to ensure effective protection. The main challenges include:
- Expanded attack surface: With the inclusion of numerous IoT devices within OT networks, the number of vulnerable points increases, raising the risk of intrusions and system compromise.
- Devices with technical limitations: Many IoT devices have low processing power, making it difficult to implement traditional security measures such as advanced encryption and robust authentication.
- Diversity and lack of standardization: Each manufacturer may adopt different protocols and security levels, making it difficult to create unified policies and centrally manage OT and IoT environments.
- Updates and maintenance: OT systems, often legacy, were not designed for frequent updates, which complicates the rapid patching of vulnerabilities without impacting production.
- Identity and access management: Effective authentication in IoT/OT environments is complex, making it difficult to control authorized devices and users, especially in distributed and decentralized networks.
- Evolving threats: From DDoS attacks and ransomware to targeted intrusions, threats are becoming increasingly sophisticated, requiring constant monitoring and integrated threat intelligence.
Advanced solutions for IIoT device protection
Securing IIoT devices requires cutting-edge technological solutions combined with strategic consulting. The most effective approaches include:
- Continuous monitoring and full visibility of connected devices.
- Network segmentation to reduce attack surfaces.
- Robust identity and access policies.
- Encryption of traffic and sensitive data.
- Tailored incident response plans for industrial environments.
See also: The Importance of Cybersecurity for Critical Infrastructures and OTs
When to seek specialized consulting?
Seeking consulting becomes essential when:
- The industrial plant is being expanded or modernized.
- Critical IoT devices are beginning to exhibit vulnerabilities.
- The company needs to comply with compliance and audit standards.
- Security incidents have already occurred or need to be prevented.
ACTAR’s OT & IoT Security
ACTAR delivers comprehensive solutions in OT & IoT Security, combining market expertise, advanced technology, and strategic partnerships with global leaders such as Check Point, Claroty, Tenable, and Medigate.
Our offerings include:
- Specialized consulting: Cyber OT assessment, policy development, and Cyber OT Advisory.
- Technological solutions: Industrial/OT Security and Healthcare Security.
- Specialized services: vulnerability assessment, continuous monitoring, support, and incident response.
Our goal is to securely optimize industrial and medical devices, ensuring resilience, operational continuity, and protection against attacks.
Best practices for protecting IoT devices
In addition to advanced solutions, several fundamental practices help reinforce security:
- Change default passwords and adopt multi-factor authentication.
- Keep firmware and systems always up to date.
- Implement segmentation of critical networks.
- Continuously monitor the traffic of connected devices.
- Conduct awareness training with operational teams.
Conclusion
Industrial IoT devices are essential for the modernization and efficiency of operations. However, without proper protection, they become entry points for cyber attacks that threaten production, physical safety, and the company’s reputation.
With ACTAR, your organization has expertise in OT & IoT Security, end-to-end consulting, and industry-leading solutions to protect critical assets and ensure business continuity.
