The answer is for anything on the Internet to be protected, and if it can't be protected it should not be on the Internet.
That's fine and good in principle. The public health equivalent would be that "anything in public is vaccinated, and if it's not vaccinated it should not be out in public."
Until you get the anti-vaxx blowback, the hysterical screaming, authorities caving in.. and then the next sweeping pandemic.
The internet is becoming the next public forum, and inevitably public hygiene debates will begin to apply to it.
Frankly, I miss the old internet the way that ranchers missed the unfenced range back in the mid-late 19th Century, before the coming of all the farmers and farm towns. The lack of "civilization" wasn't so bad when it was so sparse, and everyone had to know what they were doing to just get by. And yet, we still had the occasional pandemic.