We had a namespace deletion occurred where we didn't run any command to delete the namespace, to give a context we deployed a opensource project via helm and 5 days back we did a namespace termination and tried redeploying a fresh one. after 5 days the fresh namespace got deleted, we are not able to trace anything , any suggestion how to find the RCA for this incident. TIA

Is audit logging enabled by chance? You can grep the logs for occurrences of the namespace. These logs will give details relating to API requests such as delete operations.

@bulky-sunset-52084 we didn't enable audit logging