The SEC (US Securities and Exchange Commission) has charged a Goldman Sachs employee on alleged insider trading

(Or ex-Goldman Sachs employee, its not clear which he is)

How he is alleged to have done it ... bolding is mine:

  • The SEC alleges that Han, who worked as an associate in Goldman's compliance department traded on confidential information contained in emails sent and received by Goldman Sachs' investment bankers responsible for advising clients on impending merger and acquisition transactions.
  • Han gained access to investment banker emails as part of his work developing surveillance software designed to monitor other employees for potential misconduct such as insider trading.
  • Purchased securities, including "out of the money" call options, of at least four companies that were on the brink of being acquired

More here

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Note to inside traders ... careful with those call options!