Could a feature request be submitted that would allow tagging specific pieces of data for a cron job to secure wipe in the background along with a manifest that shows the data wiped with time-stamps? Is that even feasible?
I was thinking one way would be to hook into Elasticsearch's events and trigger some custom script upon deletion that would find relevent documents across nodes and overwrite them in the segment-files or some such, but as I haven't had the chance to look that deeply into it yet I don't know how pratical this solution would be.