Mackeeper is listed as #2 on the list you linked to...[1] They aren't exactly a high quality AV product. 1. http://appleinsider.com/articles/15/08/10/mackeeper

Mackeeper is listed as #2 on the list you linked to...[1] They aren't exactly a high quality AV product. 1. http://appleinsider.com/articles/15/08/10/mackeeper-to-pay-out-2m-in-proposed-class-action-settlement http://appleinsider.com/articles/15/08/10/mackeeper-to-pay-o...