I had something similar, can't quite remember what happened but I did mention it to Rainy but she may have forgotten also. It happened a few months ago now. I have gone into Curezone and needed to do run norton afterwards but can't say for sure what the problem was or whether it came from outside sources. I am weary using Curezone on my main computer and prefer to use the ipads only because it is easy to do an ipad clean up.