Application-level logging depends on the monitored process, so a compromised process can terminate the watchdog, truncate log files, or avoid generating events. Root inside a container enables actions like kill -9 on a logging sidecar, log truncation, and fileless execution paths that do not touch the filesystem. eBPF attaches probes to the Linux kernel syscall interface, providing visibility that persists even when an attacker has root in a container. Disabling an eBPF probe requires escaping to the host kernel, which is harder than stopping a user-space agent. Using an eBPF-based approach can reduce security CPU consumption by 60–80% and sharply cut telemetry volume by filtering in the kernel. Deployment should proceed in phases: observe first, alert second, enforce last. Falco and Tetragon are production-ready options without requiring kernel code.
"Application-level logging depends on the cooperation of the process being monitored. A compromised process can kill its own watchdog, rewrite logs, or simply skip generating them. Your security visibility should not hinge on an attacker's willingness to be observed."
"eBPF attaches probes directly to the Linux kernel's syscall interface, giving you visibility that persists even when an attacker has root inside a container. Disabling an eBPF probe requires escaping to the host kernel, which is a far harder problem than running kill -9."
"Replacing a stack of user-space security agents with a single eBPF-based agent can cut security-related CPU consumption by 60-80%, and the telemetry volume drops sharply because filtering happens in the kernel instead of in a SIEM you are paying per-GB for."
"Roll out eBPF security in phases: observe first, alert second, enforce last. Skipping straight to enforcement is how you get paged at 3 AM because a detection rule killed your payment service."
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