As Sun's chief network officer, Geoff Baehr directs Sun's efforts related to network technology and future directions. He is also responsible for investigating and formulating product strategy for high-resolution TV, video compression, and other enabling technologies.
Security is only one element.
The customer, the fulfillment systems, decision support, ware-housing, and shipping are all of prime importance. Electronic commerce will not  succeed until  it is easier to do business electronically than it is to pick up the telephone and call an 800 number. And  this is a very big business. Yes, that's definitely happening. In fact, many companies are no longer even using leased lines to connect to their partners and suppliers but are instead sending encrypted information over the public Internet.