This particular piece of legislation handles some fairly fundamental subjects with a VERY broad brush, the interesting thing will be to see how it's interpreted by the courts.
Everything I've read; press, legal opinion etc. suggests that it is open to some (probably) unanticipated interpretations, ie if your company gives you access, you have a right to make reasonable personal use of it, with an expectation of privacy regarding that use.
Doesn't matter what you sign to get a job, if it's a right, it remains a right.
This should keep a lot of lawyers profitably employed for years....