How do you activate 3d secure code?

To activate 3D Secure code, you typically need to log into your online banking account or the website of your card issuer. Look for the section related to card security or online payments, where you can enroll in 3D Secure services, often referred to as Verified by Visa, MasterCard SecureCode, or similar. Follow the prompts to set up your authentication method, which may include creating a passWord or registering your mobile number for SMS verification. Once completed, your card will be ready for 3D Secure transactions.