Update Security String to 2016-12-01 am: bacdf263ee am: c8ce9e6e00 am: 7c0f193b7f  -s ours am: 5d3d63700d am: 3593bce5d9 am: ddadcf3b9b
am: 921874162d

Change-Id: Ic0298376eed68fc1616eff990cb09557bc7df9d8