Who Is Michael Calce? Age, Biography, and Wiki
As of 2025, Michael Calce is 41 years old. Known by his alias "Mafiaboy," Calce was initially infamous for his involvement in the largest denial-of-service attacks in history at the age of 15. Today, he has transformed from a notorious hacker into a respected cybersecurity expert, working to educate others about online security. His journey from hacker to security advocate is documented on his Wikipedia page, where fans and followers can learn more about his remarkable evolution.
| Occupation | Criminals |
|---|---|
| Date of Birth | 1984 |
| Age | 41 Years |
| Birth Place | Montreal, Quebec |
| Horoscope | |
| Country |
Popularity
Michael Calce's Popularity over time
Height, Weight & Measurements
Michael Calce stands at a height of approximately 5 feet 10 inches (178 cm). His weight is estimated at around 160 lbs (73 kg), fitting a fit and healthy lifestyle. Though specific measurements have not been disclosed, Calce maintains an athletic physique, which reflects his dedication to personal fitness and wellness.
Family, Dating & Relationship Status
While Michael Calce tends to keep details of his personal life private, recent reports suggest that he has been in a stable relationship. His girlfriend, whose identity remains largely confidential, is known to support his endeavors and interests, including his work in technology and cybersecurity. With a focus on balancing his professional and personal life, Michael keeps the specifics of his relationship under wraps, ensuring that both he and his partner enjoy their privacy.
When he was five, his parents separated and he lived with his mother after she had won a lengthy battle for primary custody. Every second weekend he would stay at his father's condo in Montreal proper.
He felt isolated from his friends back home and troubled by the separation of his parents, so his father purchased him his own computer at the age of six. It instantly had a hold on him: "I can remember sitting and listening to it beep, gurgle and churn as it processed commands. I remember how the screen lit up in front of my face.
There was something intoxicating about the idea of dictating everything the computer did, down to the smallest of functions. The computer gave me, a six-year-old, a sense of control and command. Nothing else in my world operated that way."
Net Worth and Salary
As of 2025, Michael Calce's net worth is estimated to be around $2 million. His earnings primarily stem from his career as a cybersecurity consultant, public speaker, and author. With a deep understanding of hacking and online security, Calce charges substantial fees for speaking engagements and offers consulting services to businesses seeking to enhance their digital security measures.
Career, Business and Investments
Michael's career trajectory has been nothing short of remarkable. After transitioning from his early hacking endeavors, he has cultivated a reputation as an authority in cybersecurity. He has worked with various organizations, providing expert advice on how to protect against cyber threats. Additionally, Calce has authored books and contributed to several publications, sharing his insights on security and technology.
Furthermore, he has ventured into the business world by investing in tech startups focused on cybersecurity solutions. This strategic move not only showcases his expertise but also reflects his commitment to improving digital security landscapes across industries.
On February 7, 2000, Calce targeted Yahoo! with a project he named Rivolta, meaning "rebellion" in Italian. Rivolta was a DDoS (distributed-denial-of-service) attack in which servers become overloaded with different types of communications to the point where they become unresponsive to commands. At the time, Yahoo!
was a multibillion-dollar web company and the top search engine. Mafiaboy's Rivolta managed to shut down Yahoo! for almost an hour. Calce's goal was, according to him, to establish dominance for himself and TNT, his cybergroup, in the cyberworld. Buy.com was targeted in a similar attack afterwards that has been attributed to Calce.
Calce claims he was not responsible and that a different hacker performed the DDoS as a challenge to coax him into targeting other websites. Calce responded to this in turn by bringing down eBay, CNN, Amazon, and Dell via DDoS over the next week.
Social Network
Michael Calce is active on social media platforms, utilizing them to engage with his audience and share valuable insights on cybersecurity. His Twitter account (@Mafiaboy) and LinkedIn profile serve as hubs for discussions about current trends in technology and personal stories from his life as a once-notorious hacker turned expert.
Education
Though specific details of Michael Calce's formal education remain scarce, it is clear that his hands-on experience and self-education in technology and cybersecurity have significantly shaped his knowledge and success. He has often emphasized the importance of continuous learning, especially in the fast-paced world of technology.
In a 2011 interview, Calce claimed that the attacks had been launched unwittingly, after inputting known addresses in a security tool he had downloaded from a repository on the now defunct file-sharing platform Hotline, developed by Hotline Communications.
Calce left for school, forgetting the application which continued the attacks during most of the day. Upon coming home Calce says that he found his computer crashed, and restarted it unaware of what had gone on during the day.
Calce claimed that when he overheard the news and recognized the companies mentioned being those he had inputted earlier in the day, he "started to understand what might have happened".
