Unless you're big enough, biometrics can become prohibitively expensive.

We've felt for sometime that IM is next big wave. If you claim to offer a total messaging solution, you have to have a solution for IM.

Is bigger better? ... Bigger is more expensive in many different ways. Do you really want that big dining room for the dinner parties you will have three times a year?

There's very little mitigation going on, and it's because it's so expensive to do, just like it was so expensive to fix the levees. So I think we would have the same reaction: Why didn't we fix those buildings? Why didn't we fix the infrastructure?

What we're talking about are interoperable security credentials, ... You need to create a bridge to support a heterogeneous environment, and that's something Microsoft doesn't do.

Biometrics will not be the sole technology being used for authentication, and it shouldn't be. Security is about adding layers, it's not about substituting technology, ... The human element [in security] is extremely important [and is achieved by] a combination of biometrics, identity, and smart card technology.