Netegrity, enCommerce, and Cylink are all vying for share of the extranet security system market. Such systems are becoming increasingly important because business intranets and extranets use the public key infrastructure, which is critical to business-worker, business-partner network transactions. Netegrity has introduced SiteMinder 3.5, a secure user management package that includes automatic failover and load distribution. Cylink released PrivateWire, which now features an OBDC interface to SQL databases. enCommerce debuted its getAccess 3.0 secure Web access management software for the