Out of context, it might mean several things:

1. as Dale said above,

2. living without Internet, and

3. living in such a way as not to minimize the awareness of one's identity to government/industry.

The last definition is probably the most common. It's staggering the amount of information that is known about us as individuals - especially if you have a credit card, but even if you've ever bought a house or car or had an involvement with the law "somebody" has a record of it.