The Securities & Futures Commission has prohibited former Hang Seng Bank staff Aaron Ko from re-entering the industry for 10 years from September 24 for his misconduct in handling a client's investment account.

Ko effected two investment transactions involving more than $3.5 million in the client's account without authorisation on July 11, 2007.

He deceived his former employer by preparing and providing false information on bank documents, purported to have contained information about the client. He also forged the client's signature on the risk profiling questionnaire.

To conceal his misconduct Ko even asked the client to lie to the bank.