Data enrichment with Logstash enhances security analytics by providing additional insights into data, helping identify potential threats such as botnet IPs or visits to malware URLs. Three common enrichment methods are Elasticsearch, DNS, and translate filters—each suited for different data feeds. The Elasticsearch filter performs lookups against indexes for threat data integration, while the DNS filter resolves domains to IPs or vice versa, often using services like Spamhaus for blacklist checks. The translate filter uses dictionaries to map values, such as URLs against a malware list. For larger workloads, the memcache plugin enables fast, non-blocking lookups, ideal for high-volume threat data or asset lookups, with a scalable enrichment layer that doesn't maintain state on individual nodes. This approach allows for rapid identification of threat-related activities, supporting incident response and further investigation in security use cases.