| There is no protection against tampering with the signals on the RF cable network.
The main advantages of BPI+ in DOCSIS 1.1 is the capability to upgrade crypto mechanisms in already deployed Cable Modems and the use of digital certificates to authenticate Cable Modems.
Notice also that all setup and configuration of the BPI functions are made at the CMTS, so as a user you have very little control over when your data are encrypted and when they are not. In reality the purpose of BPI and BPI+ is this
* To protect against theft of service
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