How is data encrypted in a typical Intranet?

All data transferred between a LAN browser and the servers may be transferred either using http or https. This is a matter of configuration with no cost implication.

There is a slight, but imperceptible bandwidth overhead in the use of https. Factonomy recommends the selection of https as a protocol of choice in which case all data transferred over the LAN is therefore encrypted.

Transfer of data over the WAN is assumed to mean transfer of data from the servers to third party systems and facilities for the encryption exist within a BizTalk server, but are subject to the third party supporting the necessary certificate exchanges.

Microsoft BizTalk is accepted as a server of choice by many financial organisation and stock exchanges for the transfer of highly secure information from vendor to vendor.