Microsoft today announced TrustBridge, a new technology that will allow different organizations using the Windows operating system to exchange user identities and interoperate in heterogeneous environments using industry-standard XML Web services protocols including Kerberos, WS-Security and forthcoming protocols in the WS-Security family. Well, This was coming for some time after the industry wide push to secure Web Services gained momentum.

Update: Find out more about the Windows "TrustBridge" technology and how Microsoft will support federation via WS-Security in a variety of products.