Normally, the only way you could read other people’s messages on Instagram would be by having their username, password, and 2FA device. However, with an Instagram spying app, you don’t need any of those, you simply need to install it on the target device as outlined in the “How to Use an Instagram Spy App” section. When you’re done, the mSpy tutorial is quite short, and the interface is simple enough that you’ll start seeing their conversations pop up within minutes.