John McAfee is a Scottish-American computer programmer and developer of the first commercial anti-virus program. This bore the McAfee brand-name for years, until it was bought by Intel and given the Intel name. His wealth peaked at $100 million, before his investments suffered in the global crisis of 2007. McAfee also has interests in smartphone apps, yoga and all-natural antibiotics. He resided for a number of years in Belize, but after several disputes with the authorities in Belize and Guatemala, he returned to the United States in 2013.