The perimeter is dead - what next for the appliance?

For years there has been talk of ‘de-perimeterisation’. Now people talk of having multiple perimeters, or of bringing the perimeter further inside the organisation. The use of cloud services and mobile devices for enterprise use is also increasing in all sizes of organisation. Is there any place left in this changing world for the security appliance? For years there's been talk of ‘de-perimeterisation’. Now people talk of having multiple perimeters, or of bringing the perimeter further inside the organisation. Is there any place in this changing world for the security appliance? How does it fit with the new security landscape and new modes of working? Tracey Caldwell looks at where the security appliance fits into today's network security architecture.