"Computer Hacking Skills"

The other day I caught Avery "hacking" into my computer. She climbs up onto the chair if I don't push it in and starts banging on the keyboard and by the time I see what she's been doing she's opened a million windows and changed about 10 settings on my computer!! I've started closing my laptop when I'm not on it. She really looks like she knows what she's doing though doesn't she...