1. A method, comprising: storing at a central scan store of a multi-tenant system, an image scan result for a container image, the container image for executing functionality of multiple applications and comprising multiple layers, wherein the image scan result generated by a scan process at a first processing device, the scan process comprising: scanning, by the first processing device, a top layer of the container image, wherein the remaining layers of the container image are immutable; verifying, by the first processing device, a clean status of the remaining layers of the container image with the central scan store; and transmitting, by the first processing device, the image scan result for the container image, the image scan result being clean in response to both of a clean result returned for the scanning and successful verification of the clean status of the remaining layers; and responsive to receiving a container image scan result request from a second processing device for the container image, transmitting the image scan result for the container image to the second processing device.