Traditional firewalls might not be enough, argues Palo Alto Networks founder Nir Zuk. The world is very different from the days when email ruled the roost and Yahoo, not Google, was the first search engine name that rolled off your tongue.
In 1995, the worst security threat was a virus on a floppy disk. But in 2011 the security landscape has completely changed; cyber crime is a huge industry and computers have the ability to bring down the networks of whole countries. The internet is not just web browsing and email any more, it's Facebook, Skype, Twitter and a multitude of other web applications.