Where are data files of elasticsearch on a standard debian install?

Now I'm in a very problematic situation... My data server has been hacked and now I can't request my elasticsearch server by curl or any other method. I have a bunch of very critical data which was not yet backuped (2 days late, hell, I didn't see the alert that backup failed). I've tried to restart the service but no way, it say nothing and I get nothing in processes when I'm watching with ps. I think that comes from my hoster which runs my server in a secure mode... So I tried to locate the physical files but I didn't find them. I've a non-customized install so in my config file, I have this : ``` # Path to directory where to store index data allocated for this node. # # path.data: /path/to/data # # Can optionally include more than one location, causing data to be striped across # the locations (a la RAID 0) on a file level, favouring locations with most free # space on creation. For example: # # path.data: /path/to/data1,/path/to/data2 ``` Great explined but finally, where are my files ? Is someone there who can help me ? Thanks in advance to all great people in this place