[[security]] == Security Plugins Security plugins add a security layer to Elasticsearch. [float] === Core security plugins The core security plugins are: link:/products/x-pack/security[X-Pack]:: X-Pack is the Elastic product that makes it easy for anyone to add enterprise-grade security to their Elastic Stack. Designed to address the growing security needs of thousands of enterprises using the Elastic Stack today, X-Pack provides peace of mind when it comes to protecting your data. [float] === Community contributed security plugins The following plugins have been contributed by our community: * https://github.com/codecentric/elasticsearch-shield-kerberos-realm[Kerberos/SPNEGO Realm]: Custom Shield realm to Authenticate HTTP and Transport requests via Kerberos/SPNEGO (by codecentric AG) * https://github.com/sscarduzio/elasticsearch-readonlyrest-plugin[Readonly REST]: High performance access control for Elasticsearch native REST API (by Simone Scarduzio)