The technology that allows for secure online transactions is typically based on encryption protocols, such as SSL/TLS (Secure Sockets Layer/Transport Layer Security). These protocols ensure that data transmitted between users and websites is encrypted, protecting sensitive information like credit card numbers and personal details from unauthorized access. Secure payment gateways also employ various security measures, including fraud detection and tokenization, to safeguard transactions. By implementing these technologies, businesses can build trust with customers, promoting secure online shopping experiences and minimizing the risk of data breaches.