OS X El Capitan

Source L https://www.google.com/search?q=Thycotic&hl=en&biw=1366&bih=623&site=imghp&source=lnms&tbm=isch&sa=X&ved=0CAkQ_AUoBGoVChMI7u3otdm9yAIVjDs-Ch0JmgRW#hl=en&tbm=isch&q=OS+X+El+Capitan+:+Security+and+Privacy+Features+Overview&imgrc=qSw_vT5AZQjM2M%3A