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Forums it-sa Expo Knowledge Forum A

Segmentation 202: Unidirectional Architectures

Featuring at least one Unidirectional Gateway, Unidirectional Architectures dramatically decrease the risk of cyberattacks.

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calendar_today Tue, 22.10.2024, 11:30 - 11:45

event_available On site

place Hall 6, Booth 6-215

Action description

south_east

Speaker

south_east

Moderator

south_east

Themes

Industry 4.0 / IoT / Edge Computing Network Security / Patch Management

Key Facts

Unidirectional Architectures enhance segmentation strategies#Unidirectional Architectures enable complex use cases#Example: Secure access using Unidirectional Gateways

Organizer

Waterfall Security Solutions Ltd

Event

This action is part of the event Forums it-sa Expo

Action description

Despite their growing significance in protecting industrial automation systems, unidirectional architectures are often misunderstood, particularly by IT-centric professionals. These architectures represent a revolutionary advance in network cybersecurity, offering use cases such as monitoring production and enabling secure remote support while dramatically reducing associated risks.
Unidirectional architectures, which feature at least one Unidirectional Gateway, enhance security by allowing data to flow in only one direction. This talk will explain how these architectures differ from traditional firewalls and highlight their critical role in safeguarding networks. Their relevance is increasing due to stricter segmentation requirements in sectors like pipelines and rail systems, the rise of ransomware, and the emergence of industrial cloud solutions. The discussion will cover various unidirectional architecture designs, their implementation, and their significant advantages in improving network security and performance.
Unidirectional architectures provide significant benefits for OT network segmentation and security. The various types include:
1. Pure Unidirectional: Information flows in one direction only, commonly used for monitoring production levels and equipment usage.
2. Time-based Unidirectional: Information flows outbound most of the time but periodically reverses for updates, used for tasks like sending patches.
3. Time-based Unidirectional and Bidirectional: Continuous outbound replication with occasional bidirectional exchanges, used for remote vendor interventions.
4. Two Unidirectional Gateways: Decouples inbound and outbound traffic using two gateways, used for tasks like load balancing in power generation.
5. Unidirectional Shortcut: Sends information from deep within a network directly to an external consumer, used for tasks like replicating industrial mirror ports to IT networks.
These architectures improve network security and reduce the risk of cyberattacks in OT networks. They also reduce the workload in higher-level networks, enhancing performance and simplifying management. As industrial systems face increasingly sophisticated cyber threats, adopting unidirectional architectures is required for maintaining the security and resilience of critical infrastructure. ... read more

Language: English

Questions and Answers: No