since insider dealing is to use the information which is not availablepublic to gain the benefit , it is an unfairactivity which is also forbidden in the security laws all around the world .由于這種行為利用了一般投資者所不知道的信息獲取實際利益,因此,它是一種不公正的交易行為,也是世界各國證券立法中明文禁止的交易行為