In highly dynamic cloud-native environments, the traditional Threat Detection and Response (TDR) approaches are increasingly showing their limitations. With its unique architecture and operational dynamics, Kubernetes demands re-evaluating how we handle security threats, particularly in the context of Endpoint Detection & Response (EDR) solutions.
The Traditional EDR Approach: SIGKILL and Its Limitations
Traditionally, EDR solutions have relied heavily on the Signal Kill (SIGKILL) command in Linux systems to terminate processes deemed malicious or risky. SIGKILL is an abrupt method that forcibly stops a process and its running threads, offering no chance for the process to complete any cleanup operations. While effective in terminating processes, this brute-force approach can lead to unintended consequences like data loss or corruption. It’s a method suited for systems where immediate cessation is paramount, but in the cloud-native world, such an approach can be too heavy-handed, particularly for mission-critical applications.
