The security code is an important proof of online transaction of credit card (debit card), so it must not be disclosed, otherwise your credit card (credit card) may be stolen.

Your security code is known by others, which means that your credit card (debit card) has certain risks. If you are afraid of being stolen, I suggest you report the loss of your credit card (debit card) and issue a new one. The security code of the new card will be changed.