Traditional sidecar proxies and kernel modules are falling short at scale. Here is how modern cloud-native architecture is shifting toward extended Berkeley Packet Filter (eBPF) for runtime observability and security.

The Bottleneck of Traditional Container Security

As cloud-native environments scale into thousands of microservices across Kubernetes clusters, traditional runtime security models begin to show significant friction.

Historically, security monitoring relied on two main patterns:

User-Space Sidecar Proxies: Running a dedicated proxy container within every pod. While manageable at small scale, it introduces severe memory overhead, increases CPU utilization, and adds noticeable network latency due to continuous context switching.

Kernel Modules (LKM): Loading custom code into kernel space.…