Another rogue trader known as "the invisible man" gambled up to £60 billion in the world's biggest bank fraud disaster. The 31-year-old Jérme Kerviel lost an incredible £3.7 billion for French bank Société Générale.

Dwarfing Nick Leeson's feat, the unprecedented losses were blamed for bringing the world's financial markets to their knees and triggering a global collapse in stocks.