This is a really hot topic, especially in this day and age when online payments are becoming more and more popular. Basic security measures include using two-factor authentication and regularly updating passwords. For extra protection, you can use virtual cards, which are created for one-time transactions and can be deleted after they are used. This reduces the risk of data theft from your main card. It is also important to pay attention to the address of the site where you enter your payment details - it should start with HTTPS, not just HTTP, and it is better to use well-known and trusted payment services. Do not forget about antivirus programs and firewalls, they will help protect your computer from malware. For additional security, you can consider using services such as , which offer secure transactions and activity monitoring. These platforms can help prevent fraud attempts and ensure the protection of your financial data.