diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b75617..55a7bd3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 ### Added
 
 - OpenAPI documents can now have `externalDocs` object provided through `@OpenAPI.externalDocs` annotation in the service level of CDS.
+- OpenAPI documents now throws warning if `securitySchemas` are not found.
 
 ## Version 1.0.6 - 23.09.2024
 
diff --git a/lib/compile/csdl2openapi.js b/lib/compile/csdl2openapi.js
index 0dcbcc2..3cacb3a 100644
--- a/lib/compile/csdl2openapi.js
+++ b/lib/compile/csdl2openapi.js
@@ -2432,6 +2432,10 @@ see [Expand](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-prot
      */
     function security(openapi, entityContainer) {
         const securitySchemes = entityContainer && entityContainer[voc.Authorization.SecuritySchemes] ? entityContainer[voc.Authorization.SecuritySchemes] : [];
+        // check if securitySchemas exist if it does not exist then throw a warning
+        if (securitySchemes.length === 0) {
+            console.warn('No security schemes defined in the entity container');
+        }
         if (securitySchemes.length > 0) openapi.security = [];
         securitySchemes.forEach(scheme => {
             const s = {};