[Realism]

When petitioner voluntarily conveyed numerical information to the phone company and "exposed" that information to its equipment in the normal course of business, he assumed the risk that the company would reveal the information.

So I would assume that that would apply to ANY service; Banking, Credit Card, Cable, Internet, TV, Public facilities (including roadways etc. Any time personal information is divulged to a second party it becomes public property or when private belongings enter public property they are no longer private. Sound about right?

[sinkspur]

So I would assume that that would apply to ANY service; Banking, Credit Card, Cable, Internet, TV, Public facilities (including roadways etc. Any time personal information is divulged to a second party it becomes public property or when private belongings enter public property they are no longer private. Sound about right?

Yep. When you voluntarily enter private information into a public property or venue or a property owned by a third party, that private information is no longer private.