1. You can download it by entering the official website of Coin Security Exchange in your mobile browser or searching for "Coin Security" in the app store.

After the download is completed, open the currency exchange APP and register.

2. Fill in the mobile phone number according to the prompt, set the password and complete the registration.

3. After the registration is completed, you can see all kinds of digital currency's trading information, including price, price fluctuation, trading volume and other data on the APP homepage.

4. If you need to trade, you can find the digital currency to be traded in the APP, enter the trading page, choose to buy or sell, and fill in the price, quantity and other information as prompted to trade.

5. In the process of trading, you need to pay attention to risks and operate cautiously. At the same time, we should also pay attention to protecting personal privacy and asset security.