Companies look beyond firewalls in cyber battle with hackers

With firewalls no longer seen as enough of a defense against security breaches, companies are looking at new tools to foil hackers trying to enter a computer network.

U.S. and Israeli startups are leading the way, with new approaches such as “honeytraps” that lure a hacker to fake data or “polymorphic” technology that constantly changes the structure of applications running on a computer.