You may know the term tipster from the world of sports betting. It refers to a sort of adviser, who will give tips to gamblers. Thomas Boursin, at just 18 years old, launches his own Facebook page in 2014, to give advice on sports betting...

His name may ring a bell, perhaps you've heard about the man who bought the last album of the famous rap group Wu Tang Clan, published in a single copy at auction. Who, on the sidelines of the 2016 US presidential election, offered $5,000 in rewards to whoever would bring him a lock of Hillary Clinton's hair. But when, in 2015, he was named the most hated personality in America, it was for a much more important matter...

Born into a modest family in the Bronx, Jordan Belfort grew up in Queens with dreams of becoming rich. When he was told in dental school that the golden age of the profession was over, he left the school to work in finance. It was the late 80's, and the Wall Street jungle was in its full glory...

Desiring to become a physician, but unable to afford medical school, John Brinkley, born in 1885 to a modest North Carolina family, decided to buy a degree outright. With no skills whatsoever, he was now allowed to practice in Kansas, Arkansas, and Missouri. Obviously, this could only spell disaster...

Zhen Wang Huang is an Indonesian who is considered one of the leading experts in oenology in the early 2000s. Born in Indonesia to Chinese parents, he immigrated to the United States in 1998 and studied in California. He quickly took the name Rudy Kurniawan, and presented himself as a rich Indonesian heir. He started a career as a wine collector, specializing in French wines and became a key figure in the industry at the age of 30...

Portrayed by actress Romy Schneider in the film La Banquière, Marthe Hanau has gradually fallen into oblivion. Which is a shame : her story deserves to be remembered ! Born in 1886 in Paris, she became one of the rare businesswomen working in finance at the turn of the 20th century. It must be said that ever since her adolescence, Marthe was determined to lead the life she wanted, despite her parents' authority...

Born in Stockholm in 1817 into a modest family, Aurora Florentina Magnusson had an early desire to rise above her social standing. In the 1830s, she worked as a domestic servant. In 1838, while working for a wealthy family, she befriended the daughter of the house. The young woman became her companion and accomplice. Indeed, in the 1840s the two young women lived together and traveled between Sweden and Finland. During this period, Aurora changed her identity, becoming Helga de la Brache. In 1860, the friends returned to Stockholm and launched the swindle that would establish Helga's legend.

Little known to the general public, this Kazakh businessman has nevertheless committed dantesque frauds. First a politician in Kazakhstan, Mukhtar Ablyazov was convicted in 1999 for abuse of power, embezzlement, tax evasion and fraud during his term as Minister of Energy. In 2002, as chairman of the supervisory board of a public company, he was charged with abuse of power by the financial police.