When you start keeping an eye on social media accounts of your children closely you can prevent a disaster from happening. One of the things that is common for young children is to post regularly on Instagram. When the posts stop you should know that something is wrong. It is probably because your child is privately sharing pictures and videos with specific users. If you want to stop this from happening you need to hack Instagram.
If you find nothing there is no need to lift the suspicion. Maybe they were aware of your intentions and deleted the evidence on purpose. Be aware of their movement and ensure that you conduct surprise checks on their Instagram account. Catching them red handed is the key to proving infidelity. If you just find a few old pictures they might even prove that the pictures were planted there to frame them. You need to ensure that your hands are clean before putting them on anyone else.
You also need to ensure that you stay discreet about this hacking. You cannot trust any friends or relatives. If you want to save your own relationship you need to go about this yourself. Involving more people may make the task a lot more complicated. All you need to ensure is that the evidence is kept in a safe place and no one should have access to the same. There are no close aids when it comes to the court of law or a divorce settlement. You are on your own and you should fight that way.
When you hack into their Instagram account you will get the complete history of what they have been doing. You will be able to see their entire private uploads and you can see any private uploads that they have received as well.