[VertexRed]

I recall that Google was taken down by a botnet in 2003, but I'm not able to find any articles about it.

Today it's different, not only do they have a massive network, but they probably also have firewalls which drop the attacks from the start.

[tw04]

That wasn't Google, that was Yahoo!, Amazon, CNN and a few others by a script kiddie that went by MafiaBoy using someone else's botnet.

https://en.wikipedia.org/wiki/MafiaBoy