WinRT 中的本地/漫游存储是否安全

WinRT 如何存储以下值？是纯文本吗？还是有某种加密

？

var localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
// Create a simple setting
localSettings.Values["exampleSetting"] = "Hello Windows";
// Read data from a simple setting
Object value = localSettings.Values["exampleSetting"];

漫游也是如此。