MARCH 24, 2025
12 MIN.
CIA triad in the manufacturing practice: Balancing IT and OT security

As IT experts know, in information technology, CIA refers not to the American intelligence agency, but to the three pillars of the CIA triad – Confidentiality, Integrity, Availability. The importance of these principles is becoming more apparent in the OT sector. This is why we are taking a closer look at this foundational model of IT security, and how it applies to today’s production environment. In this post, you’ll learn the specific challenges companies face in upholding the CIA triad, and the appropriate strategies to overcome them.
The three pillars of the CIA triad
The CIA triad provides a basic framework for guiding thinking on organizational security. This data-centered model recognizes the importance of data collection and analysis in organizations, and in particular, in a networked Industrial Internet of Things (IIoT). But what exactly do we mean by the three pillars of confidentiality, integrity, and availability?

Confidentiality
Confidentiality refers to protecting data from unauthorized access to ensure that sensitive information remains private. In production environments, data confidentiality is traditionally lower in the prioritization than the other two principles, but it should not be overlooked. Proprietary production data crucial to the company’s success, such as confidential formulas like the Coca-Cola recipe, must be safeguarded against espionage.
Integrity
Integrity means protecting unauthorized alteration of specific data sets, whether at their storage location, or during transfer. In addition, any changes that are made should be detected and reported. In production, data integrity is often critical. Consider, for example, the formula of a drug in pharmaceutical production – if a machine parameter deviates undetected, the impact could be devastating.
Availability
For data to be usable, it must be available when the user or service needs it. The principle of availability means ensuring the highest possible system uptime, and providing resources for the retrieval and transport of data. This is also a key challenge in the operation of a production line. Production downtime, for example, caused by the non-availability of a new machine parameterization, can be so expensive that it endangers the company’s survival.
Strategies to strengthen the complete CIA triad in the Industry 4.0 environment
Ideally, the three principles of data security intertwine, strengthening cyber resilience in the organization, and making data available – laying the foundation for future business success. In practice, however, the complex dependencies and diverse requirements of the digitalized production components can lead to conflicts in the CIA triad implementation. Here are some strategies for industrial companies to help eliminate these conflicts, and optimize confidentiality, integrity, and availability holistically.
1. Resolve IT/OT convergence with full network segmentation and data transformation
While IT and OT are increasingly converging in industry, they have different requirements that may cause friction. Production typically prioritizes stable processes and uninterrupted system availability, which doesn’t always align with IT’s focus on measures to increase confidentiality and integrity. An example is the need for short security update cycles and advanced encryption procedures.
The result is interrupted communication between networks due to compatibility issues. In addition, there is a risk that malware can spread from one of the two areas throughout the entire corporate network.
Network Edge software solutions can resolve these conflicts. Similar to the Software Air Gap Principle, individual products, such as edge.SHIELDOR, fully separate OT and IT networks without compromising communication. Data packets are routed through a multi-layered container system, where they are scanned for malware before they enter the target network.
Moreover, secure modern protocols used in IT can be converted into older versions, for example, SMBv3 to SMBv1, before being sent to the production plant. The reverse is also possible, ensuring that output from the plant can be received in IT.
2. Extend centralized user management to the OT network
Traditionally, a core strategy for maintaining confidentiality in IT networks is comprehensive user and role management. Following the principle of least privilege, each employee is assigned only the access rights they need to perform their tasks. When users log on to the network, they are authenticated to establish their identity, and then authorized according to the permissions for each directory they access.
Implementing such user management in OT environments can be challenging. The administration of such rights is often not available in older machines and software, let alone the implementation of modern security techniques, such as multi-factor authentication.
When OT security solutions like edge.SHIELDOR are implemented on the production line, it is possible to securely integrate the OT network into the rest of the organization. Protection mechanisms, such as token-based two-factor authentication, or central active directory integration, allow services like remote maintenance tools to be assigned to specific users. This ensures strict data confidentiality standards are implemented, even in the production environment.
3. Product and process development according to established standards such as IEC 62443
Existing standards act as gold standards for implementing the CIA triad in industrial environments, e.g., with the IEC 62443 for Industrial Automation Control Systems (IACS). This framework contains policies and procedures broad enough to cover a wide range of systems and equipment in the manufacturing industry.
Applying these guidelines in the development of software components – from the production process through to the final product – provides the perfect balance between confidentiality, integrity, and availability. Ideally, the entire product lifecycle is included in the development process, including Vulnerability Management with Security Information & Event Management (SIEM).
At TRIOVEGA, our processes are certified according to IEC 62443-4-1, ensuring that our Custom Software Solutions and industrial products are designed and developed according to the highest safety standards.
The future: From data-centric security model to data-driven production
If these strategies are taken into account, the data made available can be used with intelligent data science methods, such as those provided by service.factoryINSIGHTS, to create in-depth analyses. Rather than just reacting, organizations can use this software to proactively identify patterns and act before production risks even arise.
Get personalized advice from our experts on how to strengthen the CIA triad in your company. We would be delighted to present our solutions in a one-on-one meeting.

Author: Mareike Redder
Mareike Redder has been working as an IT engineer at TRIOVEGA GmbH since 2018, and has been responsible for product management since 2022.
You want to know more about our products
and solutions?
edge.SHIELDOR
Holistic OT security for industrial plants that enables data connectivity and sustainably reduces costs
service.factoryINSIGHTS
Discover potential and optimize production processes effectively with our data science expertise
This might also interest you:
- CIA Triad in Industry 4.0: How to secure the store floorAs IT experts know, in information technology, CIA refers not to the American intelligence agency, but to the three pillars of the CIA triad – Confidentiality, Integrity, Availability. The importance of these principles is becoming more apparent in the OT sector.
- The NIS 2 Directive: The measures industrial companies must take to complyWhat measures must industrial companies take to comply with the NIS 2 Directive? Find out the most important requirements and obligations for successful implementation.
- Risk management for OT networks: Getting IT/OT convergence rightIf you attend a cybersecurity trade fair or event with a focus on industrial production, you’ll hear the same question again and again: How can we harmonize our IT and OT systems?