Rethinking OT security: context-based exposure management for direct results

OT security rethought: context-based exposure management for direct results

In today's world, the complexity of our IT environments is constantly increasing - and this also applies to operational technology (OT). These OT systems have often grown historically and consist of a mixture of modern and outdated components. This makes them particularly vulnerable to cyber attacks. The challenge is to protect these systems effectively, as misconfigurations and human error can quickly become vulnerabilities that are exploited by cyber criminals.

Why a new approach is needed

Conventional cybersecurity strategies are often difficult to adapt to the specific requirements of OT systems. The diversity and complexity of these systems, including legacy technologies and real-time operational requirements, require customised security solutions. Many traditional visibility tools are simply not able to fully map these complex environments. This leads to blindspots that make it difficult to identify and remediate vulnerabilities.

Another problem is the remediation of vulnerabilities. This is often postponed due to the potential impact on system reliability and the risk of production downtime. Furthermore, companies find it difficult to properly quantify and prioritise risks. Threats vary depending on the context of the asset and its connectivity, but many traditional approaches do not sufficiently take these differences into account.

The solution: Contextual Exposure Management

This is where the contextual approach comes in. This innovative approach focuses on practical, cost-effective measures that are directly tailored to the actual threats and risks in the respective environment. The goal is clear: to reduce the attack surface and increase the resilience of OT systems to cyber threats.

The benefits of contextual exposure management:

1. Visibility and identification

2. Vulnerability management

3. Improved risk mitigation and resource optimisation

4. Consideration of business continuity, safety and environmental aspects

5. Compliance with guidelines and regulations

The contextualised approach of exposure management is an important step in the development of cybersecurity for OTs. It enables the improvement of protection against cyber threats through precise and actionable measures tailored to the specific risks and vulnerabilities in each environment. In a dynamic threat landscape, this approach provides a practical and cost-effective solution for securing critical assets, protecting the supply chain and strengthening overall resilience to cyber threats.