Kent Roberts, the former general counsel of software giant McAfee, has been charged with fraud, becoming the third senior in-house lawyer to be indicted this year for misconduct relating to backdated share options.

Roberts – who was accused of devising “a scheme to defraud by granting himself and others valuable in-the-money stock option grants” in a statement by the US Department of Justice – has been charged with seven counts of fraud between 2000 and 2002.