DDOS attack

[Raven2014]

As far as I know there is only one company in the world that is known to be immune to DDOS attack ... and it is Amazon. First, because Amazon is in the business of selling server so they naturally they always have a large reserve capacity. Secondly, and probably more importantly, they did the math and see that they stand to lose hundred of millions for each minutes the website is down, or even billions if it's during holiday season. I think in the past Amazon came under concentrate attack for a straight 3 days, then the attackers gave up because Amazon's servers just shrug it off. I have never heard similar thing from any other tech companies. The joke is you can't DDOS Amazon, because the massive amount of business they process at any given moment means they're already ALWAYS DDOSed by their actual customers.

But in case if anyone wondering why there is no business incentive to preemptively stop DDOS attack ... just looks at amazon to see how big such incentive needs to be.

[Kes13a]

As far as I know there is only one company in the world that is known to be immune to DDOS attack ... and it is Amazon. First, because Amazon is in the business of selling server so they naturally they always have a large reserve capacity. Secondly, and probably more importantly, they did the math and see that they stand to lose hundred of millions for each minutes the website is down, or even billions if it's during holiday season. I think in the past Amazon came under concentrate attack for a straight 3 days, then the attackers gave up because Amazon's servers just shrug it off. I have never heard similar thing from any other tech companies. The joke is you can't DDOS Amazon, because the massive amount of business they process at any given moment means they're already ALWAYS DDOSed by their actual customers.

But in case if anyone wondering why there is no business incentive to preemptively stop DDOS attack ... just looks at amazon to see how big such incentive needs to be.

yeah, in this one instance I would agree with the thought that some have here that SE is a "small indie company" in comparison. Amazon = $514 billion annually and SE...$2.49 billion... Amazon makes it money doing many sales online and SE doesnt, not many companies need that kind of "protection" against these kind of attacks. though, does Amazon have a real defense, or are they servers just much more robust because of the volume they need to handle on a normal basis?

[Raven2014]

though, does Amazon have a real defense, or are they servers just much more robust because of the volume they need to handle on a normal basis?

That's exactly it, as other have said there is no "real" defense against DDOS beside outcapacity the attacker, Amazon's infrastructure is just "innate" in that regard. Basically they make sure they always have the capacity for holiday shopping (Prime day, Black Friday .etc.) when the traffic will increase many fold ... So to Amazon, a DDOS attack is no difference than the increase traffic spike they would see on a holiday, and they ALWAYS have more than enough capacity for it. Whenever an attack happens, Amazon's serve just look at it and thought "oh, is it Christmas today?" and scale up. Because of their ceiling is so high that I doubt any attacker would be able to exceed it.