Is decrypting satellite illegal?

Please don’t say it is because you think it is. I have been unable to find a law specifically declaring the act illegal. I believe satellite companies tried to use the DMCA to prosecute people doing this act, but that is kind of a broad stretch of the law. I have heard it is currently “undetermined” or a “grey area”

I am not talking about modifying the satellite companies equipment (that would be vandalism and thus illegal). I am talking about buying your OWN equipment.

I can not see how passively listening in on a signal without physically altering, damaging, or tapping into a physical medium owned by the company is illegal. After all I am only passively listening to the signal broadcasted over the air.

Anyone care to elaborate or show me a law that outlines this?