The technology often utilized for secure online transactions is SSL/TLS (Secure Sockets Layer/Transport Layer Security). These protocols encrypt data transmitted over the Internet, protecting sensitive information such as credit card numbers and personal data during online communications. By establishing secure connections between clients and servers, SSL/TLS ensures the confidentiality and integrity of the transmitted data. This technology is vital for e-commerce and online banking, fostering trust in digital transactions and safeguarding user information.