BEIJING, Jan 15 (Reuters) - China's National Development and Reform Commission vowed to clamp down on illegal practices in the black and grey markets involved in acquiring, trading, or supplying data, as outlined in regulations released on Wednesday to enhance the governance of data circulation security. In a bid to curb data misuse, steps were recommended to enhance the monitoring of data security risks in crucial industries and sectors, aiming to avert systemic and extensive data security threats to uphold national security and societal order.