diff --git a/qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js b/qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js
index 50f0b4c1..4d24462e 100644
--- a/qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js
+++ b/qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js
@@ -882,6 +882,12 @@ class WebBrowser extends LitElement {
 						response = JSON.stringify(data);
 						break
 					}
+					if (!data.encrypt && data.service.endsWith("_PRIVATE")) {
+						let data = {};
+						data['error'] = "Only encrypted data can go into private services";
+						response = JSON.stringify(data);
+						break
+					}
 
 					if (data.encrypt) {
 						try {
@@ -1042,6 +1048,10 @@ class WebBrowser extends LitElement {
 							identifier = 'default';
 						}
 
+						if (!data.encrypt && service.endsWith("_PRIVATE")) {
+							throw new Error("Only encrypted data can go into private services")
+						}
+
 						if (data.encrypt) {
 							try {
 								const encryptDataResponse = encryptData({