Hi Guys/Girls, Is it worth having antivirus software installed for OSX? I am running ProtectMac Antivirus, but I am not sure if it is doing anything to protect me. I recently found out from some Power Users on MR, that using CleanmyMac and other cleaning apps, was not useful and in some cases deleted system files, making the computers very slow and buggy I wonder if the Antivirus softwares are also, in any way useless and/or cause damage to the OSX. Your thoughts and advise is appreciated. Thanks.