There are solutions. A variety of firewall offerings are available today, and improved offerings will be appearing. Privacy-enhanced mail offerings are also available to carry messages securely across the 'net and to verify the authenticity of the sender. But none of these technologies is adequate to address the problem. Professional analysis is required to understand users' technical and business environments and determine the appropriate security approaches.
Open access is the most pressing issue.
Part of the design of the new protocol includes attention to security, mobility, real time and multicast, so there are really several different capabilities wrapped up in this transition. Substantial evolution of products, services and organizations will be required. It's not clear in the National Information Infrastructure there's going to be anyone around who knows enough about all the pieces to make something work or, if something goes wrong, to fix it. The challenge is how to prevent that scenario from becoming the showstopper. All aspects of the information superhighway, whether it's 500-channel TV, movies on demand, interactive TV, multimedia applications on the Internet, require a great deal more bandwidth and switching capacity than the current infrastructure can support.