At present, the most authoritative regulator in the market is FSA, and traders regulated by FSA must abide by the FSCS deposit protection plan, which can ensure the safety of investors' funds. There are only a few dealers supervised by FSA, so you must choose these regular dealers.
To identify whether a trader is regulated by FSA, you can ask Baidu: How do regular traders identify? Friends who invest in foreign exchange must read or invest in Baxter.
Investors or new friends are advised to know more about it to avoid encountering a black platform.