This document discusses Core Intel, which is part of ING's cybercrime resilience program. It aims to improve capabilities for cybercrime prevention, detection, and response. Core Intel utilizes tools like Kafka, Spark, Elasticsearch and HDFS to collect, process, analyze and store large amounts of data like network logs and threat intelligence feeds. This allows for advanced analytics, matching, alerting and monitoring to detect cyber threats. The document outlines various configurations, optimizations and best practices for operating this big data pipeline and toolset at scale.