If he is concerned, I'm freaking out.
k. I'm not.
These attacks are significantly larger than the ones they're used to seeing. They last longer. They're more sophisticated. And they look like probing. One week, the attack would start at a particular level of attack and slowly ramp up before stopping. The next week, it would start at that higher point and continue. And so on, along those lines, as if the attacker were looking for the exact point of failure.
"Not dead yet."
"Bang bang bang!"
"Still not dead."
"Bang bang bang bang!"
"Oh, you got me."
"No. How stupid are you?"
The attacks are also configured in such a way as to see what the company's total defenses are. There are many different ways to launch a DDoS attacks. The more attack vectors you employ simultaneously, the more different defenses the defender has to counter with. These companies are seeing more attacks using three or four different vectors. This means that the companies have to use everything they've got to defend themselves. They can't hold anything back. They're forced to demonstrate their defense capabilities for the attacker.
Mutherfucker, I personally know the guy who dropped Netflix for two days back in 2009. It was a load balancing issue. They were using a second-rate CDN for one of their content providers and it got overwhelmed by demand and brought down Akamai and Amazon. And somehow, the world didn't end. "They can't hold anything back." Right. Because fuckin'A if Yahoo.com goes down there will be panic in the fuckin' streets.
Verisign is the registrar for many popular top-level Internet domains, like .com and .net. If it goes down, there's a global blackout of all websites and e-mail addresses in the most common top-level domains.
Did you mean ICANN? Because you're talking about ICANN. Fun fact: they used to be a mile from my house, then I moved. Check it. here they are on Street View.
Who would do this? It doesn't seem like something an activist, criminal, or researcher would do.
No, it seems like the kind of janky shit North Korea would do.