When and how did Mafiaboy compromise sites?

Mafiaboy, a hacker known as Michael Calce, gained notoriety in 2000 when he compromised several high-profile websites, including CNN, eBay, and DELL. He utilized a Distributed Denial of Service (DDoS) attack strategy, which involved overwhelming servers with traffic to render them inoperable. At just 15 years old, his attacks highlighted vulnerabilities in internet security, leading to increased awareness and changes in cybersecurity practices. His actions ultimately resulted in his arrest and a brief stint in juvenile detention.