What is the difference between east-west and north-south traffic?

East-west traffic occurs internally within a network, while north-south traffic moves in and out of the organization.

Why is east-west traffic important for security?

Because attackers often use internal traffic to move laterally within a network after gaining initial access.

How can east-west traffic be secured?

Through segmentation, access control, and Zero Trust principles that limit communication between systems.

Where is east-west traffic used?

In data centers, cloud environments, and modern applications built on microservices and distributed systems.

East-west traffic

What is east-west traffic?

East-west traffic refers to data moving internally within a network, between servers, applications, users, and other resources.

Unlike north-south traffic, which flows in and out of the organization, east-west traffic stays inside the environment. This includes communication between systems in a data center, between microservices, and across internal infrastructure.

This type of traffic is often less visible but critically important. Once attackers gain access, they typically use east-west movement to expand their reach and access more systems.

A simple way to understand it is to think of movement inside a building. Being inside does not mean access to every room. East-west traffic is about what happens internally.

Sicra and east-west traffic

East-west traffic is central to Zero Trust, segmentation, and internal security.

At Sicra, it is used to assess how organizations control internal traffic, limit lateral movement, and build structured security zones.

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