The revelation of rogue trading at UBS follows a period of market volatility. That is nothing new, say risk managers.
US hedge fund billionaire Raj Rajaratnam has been found guilty of making tens of millions of dollars from insider trading, the BBC reports.
A former Deloitte Tax partner and his wife have been charged with insider dealing by the SEC in the US as part of a joint investigation with the FSA.
Former Société Générale investment bank head Jean-Pierre Mustier has been fined €100,000 (£81,950) by France's AMF financial regulator over insider trading as the financial crisis began.