The bottom line is simple: they can't do it, they won't be able to do it, and it makes the issue moot. Someone is desperate for attention.
You would need to have complete control over the infrastructure of something equivalent to an Amazon, Microsoft, or Google to take down the whole DNS system - and it would require a permanently sustained and constantly evolving attack.
I'm always amazed at the vast under-estimation of what would be faced in a real attempt of that sort. First, let's assume they made some progress and actually started harming the stability of the global Internet. 1) the number of interested parties (from hackers to corporations) that would immediately respond to the counter, in numerous ways, would resolve the issue in an extraordinarily short amount of time and 2) watch you don't have the US special forces black bagging you within 24 hours if you're involved, no matter where you're at on earth. The corporate money interest in the Internet being up is at least a hundred billion dollars per day. They will kill you over that, or at the least put you in an off grid terrorist prison.
You would need to have complete control over the infrastructure of something equivalent to an Amazon, Microsoft, or Google to take down the whole DNS system - and it would require a permanently sustained and constantly evolving attack.
I'm always amazed at the vast under-estimation of what would be faced in a real attempt of that sort. First, let's assume they made some progress and actually started harming the stability of the global Internet. 1) the number of interested parties (from hackers to corporations) that would immediately respond to the counter, in numerous ways, would resolve the issue in an extraordinarily short amount of time and 2) watch you don't have the US special forces black bagging you within 24 hours if you're involved, no matter where you're at on earth. The corporate money interest in the Internet being up is at least a hundred billion dollars per day. They will kill you over that, or at the least put you in an off grid terrorist prison.