Bug in latest version of OS X gives attackers unfettered root privileges http://arstechnica.com/security/2015/07/bug-in-latest-version-of-os-x-gives-attackers-unfettered-root-privileges/
I always perceived that hacking behind firewalls and protection software is very difficult. Linux and Mac are more secured than Windows (will to some extent I still do). But not anymore. Every month I read about new hacks involving every OS I know. So many breaches like Sony Pictures, Sony PS online, US Government and Hacking Team leak (a spyware company selling to Governments).
Expects to read more worse stories in the future.