Which is what's so horrible about the law. The carrier lock prevents you from altering or swapping out the code that allows negotiation with other carriers. I

Which is what's so horrible about the law. The carrier lock prevents you from altering or swapping out the code that allows negotiation with other carriers. In this case the "security" is "protecting" code defined as content. Make no mistake, DMCA is not about copyright or redistribution, even if that's what it says on the tin. It is about making it illegal to circumvent DRM, regardless of how or to what it is applied.