These "hackers" are getting in because of something you are doing/allowing or they have permission to do whatever they are doing (like a parent). Do you know who is accessing your phone?
What do you mean by, "sometimes can even move some of the apps within my phone"? This could just be icon re-arranging. Please clarify.
none of my family can access my device, and tbh,
im lil bit confused how they can access into my device. and the best part is, i did reset my device previously and they still can see my activity on this device.
Edit: i have quite unic arrangement on my icon apps, and i remember where is their position should be, but 2 days ago, some of my apps was in the different grid.