diff --git a/plugins/command-manager/src/main/java/com/wazuh/commandmanager/CommandManagerSettingsException.java b/plugins/command-manager/src/main/java/com/wazuh/commandmanager/CommandManagerSettingsException.java
index 5669175..bb66f51 100644
--- a/plugins/command-manager/src/main/java/com/wazuh/commandmanager/CommandManagerSettingsException.java
+++ b/plugins/command-manager/src/main/java/com/wazuh/commandmanager/CommandManagerSettingsException.java
@@ -1,3 +1,10 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
 package com.wazuh.commandmanager;
 
 
diff --git a/plugins/command-manager/src/main/java/com/wazuh/commandmanager/settings/CommandManagerSettings.java b/plugins/command-manager/src/main/java/com/wazuh/commandmanager/settings/CommandManagerSettings.java
index 5f26e20..0362e10 100644
--- a/plugins/command-manager/src/main/java/com/wazuh/commandmanager/settings/CommandManagerSettings.java
+++ b/plugins/command-manager/src/main/java/com/wazuh/commandmanager/settings/CommandManagerSettings.java
@@ -1,3 +1,10 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
 package com.wazuh.commandmanager.settings;
 import org.opensearch.common.settings.Setting;
 import org.opensearch.common.settings.Setting.Property;
diff --git a/plugins/command-manager/src/test/java/com/wazuh/commandmanager/settings/PluginSettingsTest.java b/plugins/command-manager/src/test/java/com/wazuh/commandmanager/settings/PluginSettingsTest.java
new file mode 100644
index 0000000..13bb50f
--- /dev/null
+++ b/plugins/command-manager/src/test/java/com/wazuh/commandmanager/settings/PluginSettingsTest.java
@@ -0,0 +1,71 @@
+package com.wazuh.commandmanager.settings;
+
+import org.junit.After;
+import org.junit.Before;
+import org.opensearch.common.settings.KeyStoreWrapper;
+import org.opensearch.common.settings.SecureSettings;
+import org.opensearch.core.common.settings.SecureString;
+import org.opensearch.env.Environment;
+import org.opensearch.test.OpenSearchIntegTestCase;
+
+import java.nio.file.Path;
+
+import static org.mockito.Mockito.*;
+
+@OpenSearchIntegTestCase.ClusterScope(scope = OpenSearchIntegTestCase.Scope.SUITE)
+public class PluginSettingsTest extends OpenSearchIntegTestCase {
+
+    private PluginSettings pluginSettings;
+    private Environment mockEnvironment;
+    private final SecureString secureString = new SecureString("dummyPassword".toCharArray());
+
+    @Before
+    public void setUp() {
+        // Create a mock Environment
+        mockEnvironment = mock(Environment.class);
+        // Instantiate PluginSettings
+        pluginSettings = PluginSettings.getPluginSettingsInstance();
+        pluginSettings.setEnv(mockEnvironment);
+    }
+
+    @After
+    public void closeSecureString() {
+        // Cleanup if necessary
+        secureString.close();
+    }
+
+    public void testLoadSecureSettings_keystoreNotExist() throws Exception {
+        // Setup the mock to return a specific path for the config file
+        Path keyStorePath = Path.of("plugins/command-manager/src/test/resources/wazuh-indexer.keystoreUNEXISTENT.json");
+        when(mockEnvironment.configFile()).thenReturn(keyStorePath);
+
+        // Mocking the keyStoreWrapper to return null
+        KeyStoreWrapper keyStoreWrapperMock = mock(KeyStoreWrapper.class);
+        when(KeyStoreWrapper.load(any(), any())).thenReturn(null);
+
+        // Check that the keystore is created
+        SecureSettings result = pluginSettings.loadSecureSettings(secureString);
+
+        assertNotNull(result);
+        verify(keyStoreWrapperMock, times(1)).save(any(), any());
+    }
+
+    public void testLoadSecureSettings_keystoreExists() throws Exception {
+        // Setup the mock to return a specific path for the config file
+        Path keyStorePath = Path.of("plugins/command-manager/src/test/resources/");
+        when(mockEnvironment.configFile()).thenReturn(keyStorePath);
+
+        // Simulate an existing keystore
+        KeyStoreWrapper keyStoreWrapperMock = KeyStoreWrapper.load(keyStorePath, "wazuh-indexer.keystore.json");
+        when(KeyStoreWrapper.load(any(), any())).thenReturn(keyStoreWrapperMock);
+        String text = "type";
+        char[] passToTest = text.toCharArray();
+        keyStoreWrapperMock.decrypt(passToTest);
+
+        // Load secure settings
+        SecureSettings result = pluginSettings.loadSecureSettings(secureString);
+
+        assertNotNull(result);
+        verify(keyStoreWrapperMock, times(1)).decrypt(secureString.getChars());
+    }
+}