diff --git a/networksecurity/service/src/com/android/server/net/ct/CertificateTransparencyService.java b/networksecurity/service/src/com/android/server/net/ct/CertificateTransparencyService.java
index 6151727..782e6b5 100644
--- a/networksecurity/service/src/com/android/server/net/ct/CertificateTransparencyService.java
+++ b/networksecurity/service/src/com/android/server/net/ct/CertificateTransparencyService.java
@@ -43,7 +43,7 @@
         return DeviceConfig.getBoolean(
                         Config.NAMESPACE_NETWORK_SECURITY,
                         Config.FLAG_SERVICE_ENABLED,
-                        /* defaultValue= */ true)
+                        /* defaultValue= */ false)
                 && certificateTransparencyService()
                 && certificateTransparencyConfiguration();
     }