How do NTT DDoS attacks differ from botnet-based DDoS attacks?

Botnet-based DDoS attacks rely on large networks of compromised computers (bots) to generate traffic. NTT DDoS attacks, conversely, often exploit vulnerabilities within NTT's own systems, requiring a different set of attack techniques and potentially bypassing traditional botnet mitigation strategies. They are less reliant on sheer numbers of bots and more focused on exploiting specific network weaknesses.