Protecting data in the past was comparatively easy. The key data that needed protection resided on large databases in a data center. Most of the mechanisms used to protect it took the form of perimeter security devices, such as firewalls and intrusion protection systems.

For a number of years, I was responsible for such a monolithic database, filled with millions of records of key consumer data. It all resided on disk arrays in two data centers. I made the data very difficult to reach from the outside world. While plenty of issues kept me up at night, losing data was not at the top of the list.

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