If you're having trouble accessing your Dahua IP camera after recent Mac security updates to Safari, it might be worth trying a camera firmware update to resolve the issue? This worked for me on two different cameras. The cameras I updated were both IPC-HDB3200C that were running 2.210.0001.0.R, build : 2013-05-17. The firmware I used that fixed the blank screen issue on the iMAC's was General_IPC-HX3(2)XXX_Eng_P_V2.212.0000.0.R.20131206 which can be downloaded here .
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