Ray Ozzie writes on News.com on why security is almost nonexistent in today's networked environments. His article is related to today's posting on his weblog. In part he advocates "cellular" approaches to security, which is (unsurprisingly) something that his company's product (Groove) does.

Security is non-existent, right. But whose fault is it? It's not a problem with the users. Users end up circumventing security because it's too hard to use, slow, cumbersome. Once security is embedded into everything and transparent, then people will use it... without knowing it. It's on us to provide it.