World's Largest DDoS Attack Reached 400Gbps, says Arbor Networks

Some time in December 2014 an unnamed ISP experienced an NTP reflection DDoS attack that peaked at a router-straining 400Gbps, easily the largest denial of service event in Internet history, Arbor Networks' 10th Annual Infrastructure Report has revealed.
It's an apparently small detail slipped into the firm's larger narrative which is probably less important in the grand scheme of things than the fact that super-massive DDoS attacks are now common enough to have turned into dull statistics.T