Defense-in-Depth has Failed Us. Now What?

Defense-in-depth. It’s a philosophy we’re all familiar with: layering defenses so that if one fails, another layer is there to stop the attack. Sounds like a great approach, and it has become standard practice for the vast majority. The problem is that, frankly, it has not worked. For years we have been bombarded with a slew of headlines about compromises and breaches.