File photo shows the exterior view of Shanghai Stock Exchange at Pudong New Area in Shanghai, east China. (Photo: Xinhua)

Securities regulatory authorities in Shanghai recently issued a notice targeting local securities traders to further strengthen supervision of securities practitioners' social media platforms, according to media reports.

The Shanghai Securities Regulatory Bureau issued a notice to further regulate the use of we-media tools by local security practitioners in order to protect the legitimate rights and interests of investors. It came after a local security practitioner was detained on suspicion of fraud in connection with his improper use of we-media tools, CCTV reported on Thursday.

The notice said securities traders must improve internal management and strictly regulate employees' use of we-media tools while establishing or improving the mechanism for practitioners when using WeChat, Weibo, Douyin and other we-media tools to carry out business activities.

Meanwhile, securities traders should implement effective measures to monitor employees' daily use of social media platforms for business purposes while focusing on the prevention of employees making misleading statements publicly in the name of their securities traders.

Lastly, securities traders should enhance compliance management and education for securities practitioners, and they were urged to strictly follow the regulations and avoid crossing the bottom line.

Chinese internet giant Tencent announced on Thursday that the company has cleaned up a total of 23,124 items of illegal content and dealt with 1,463 accounts that published financial and economic content violating regulations.