We use Splunk for security and also PCI compliance.
We have installed and implemented this solution for several clients in Bolivia with our team. We have received training from Splunk directly, and we have also provided training to our clients.
We deploy two versions: one for on-premise and one for the cloud.
Most of our customers purchase Splunk because they required a tool for gathering and collecting all of the logs from the infrastructure in order to make a correlation between data and to spot patterns surrounding security incidents.