There are a variety of ways that to use privacy coins according to the kind of coin. Let's take a look at some typical examples.

Privacy coins protect users in a number of ways. One method is through the use of'stealth addresses'. Every time a buyer purchases cryptocurrency, a new address is created and linked to the purchase. This ensures that it will not be linked with a digital wallet.

Another method of protecting the user's information is to use a 'ring signature. If you use a digital signature to confirm transaction information, it will be entered into a ring with others signatures from different signers, which means you won't be traced. There are a lot of possibilities involved leading to collective immunity. https://hackernoon.com/meet-the-best-privacy-coins-in-2021