Be further evidenced in

1. Does the green sentence mean "the successful activities of “hacktivist” groups like Anonymous and LulzSec are good examples of the current contestation of the control of the internet"?

2. Does the red sentence mean "the vast and different uses of internet that surround them"?

Context:

The current contestation of the control of the internet is further evidenced in the successful activities of “hacktivist” groups like Anonymous and LulzSec, who have in the name of migrants’ rights hacked into the websites of US and Italian police agencies in order to vandalize and open classified information to public scrutiny. Such hacking activities, even as activism, certainly raise a number of moral and ethical concerns. Within this general contestation of technology, new-media artists are focused on asserting the public’s right to retain control of the internet as a public domain or on raising awareness of the scope of internet use that surrounds them, including activity that carries out operations of surveillance on private citizens.