|Originally posted by haysdb|
I'm intrigued at just how big a business this is. I suppose ordering PPV movies would be out.
Originally posted by jonathanR
The whole card is the key to everything thats why its a big deal. Directv dosent tell you......but the card in your reciever actually allows every channel to come in, unscarambled.....including ppv.
The signals in the air are encrypted, and the card is programmed with keys to decrypt it. These keys come via the satellite signal, and not the phone line. The phone line is used when the card has ppv orders stored on it and uploads that information to DirecTV. The phone line is an outgoing "return path" to DirecTV. The information telling your receiver and access card what to do comes via the satellite.
The reason why cards are such a big deal on ebay is because hackers reprogram these cards to fool the receiver into thinking that they are authorized to view all channels. For the most part, you can't use a used HU card in your receiver, because it has been "married" to the receiver, meaning only your card will work in your receiver and that change is more or less permanent. That's why so called "virgin" cards, which have never been written to are so hot on ebay.