Secure payment systems are technologies designed to protect financial transactions made online. They use encryption and authentication methods to ensure that sensitive information, like credit card numbers and personal details, is kept safe from hackers. Popular examples of secure payment systems include PayPal, Stripe, and Apple Pay, which allow users to make purchases without exposing their financial data. These systems also provide a layer of trust for both buyers and sellers. When using a secure payment system, customers can feel confident that their transactions are protected, while businesses can reduce the risk of fraud. This security encourages more people to shop online, benefiting the entire e-commerce ecosystem.