1. Always use a virtual credit card: There are many virtual credit card services available that make it difficult for carders to gain access to your actual credit information. Virtual cards provide a secure, single-use token that they can use to make purchases.

2. Use two-factor authentication: Most online merchants now offer two-factor authentication as an extra layer of security. This requires you to enter a second level of authentication when logging into a website or app, such as your phone number or a code sent to you via text message.

3. Use strong passwords: A strong password is one that’s difficult to guess and is at least eight characters in length. Avoid using the same password for multiple websites, and consider using a password manager to generate and securely store your passwords.

4. Monitor your credit: You should regularly monitor your credit report for any suspicious activity. You can place a fraud alert with the three major credit bureaus (Experian, Equifax, TransUnion) if your card has been compromised.

5. Avoid using public Wi-Fi: Public Wi-Fi networks are not secure and can be used by hackers to gain access to your personal information. Whenever possible, stick to using secure networks that require a password or authentication.