Robert Herjavec launched one of the first companies dedicated to providing corporations with Internet security systems, selling the company to AT&T for more than $100 million. From there he moved to other ventures, including the sale of a Silicon Valleyābased technology company to Nokia for $225 million. Three years later he established The Herjavec Group to provide highly sophisticated Internet security services to businesses. The star of CBC TVās Dragonsā Den and ABC TVās Shark Tank , Herjavec supports several charities dedicated to funding cancer research, and divides his time between Toronto and Miami. Visit him online at www.robertherjavec.com .