Maybe not DRM as DRM, but sure you can protect such things. Just not necessarily with systems in place currently. Conceptually simple solution: unique tokens

Maybe not DRM as DRM, but sure you can protect such things. Just not necessarily with systems in place currently. Conceptually simple solution: unique tokens for your phone / address that a routing system directs to you. Your info is never even in the hands of e.g. someone you buy from, and you can simply revoke the token to prevent any and all spam from now until forever, regardless of what they do with it.