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The City: a metaphor on software and security

I've probably written about this before, but I feel inspired to write out some details as I sit in this session at ACSAC.

I think the modern city is the perfect metaphor for modern software. Individual programs are entities (people, organizations) who exist in a city. Elements of the city (other programs) provide services and utilities. There is a level of confidence in the services and utilities, but all is at risk of disruption by natural disasters or by criminal acts.

Here are some essential points:

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