
DDoS attacks have only gotten more sophisticated as time goes on. An increasingly popular tactic among bad actors is to hit hard and fast in what are described as 'hypervolumetric' attacks. For instance, last October one ISP based in East Asia was pummeled by a botnet at a rate of 5.6 terabit per second.
According to Cloudflare's quarterly DDoS threat report, the incident on October 29 was the largest attack of its kind ever reported (via Bleeping Computer). The volley was launched from a Mirai-based botnet of 13,000 compromised devices, lobbing requests from about 5,500 unique IP addresses per second.