Mac OS X  2b”ATTR”””Zone.Identifier[ZoneTransfer] ZoneId=3 ReferrerUrl=https://www.dahuasecurity.com/ceen/support/downloadCenter/softwares?child=201 HostUrl=https://dahuasecurity.s3-ap-southeast-1.amazonaws.com/uploads/soft/20200414/DH_SMARTPSS-Win64_En_IS_V2.003.0000001.0.R.200413.zip