The technology essential for securing online data transfers is encryption. Encryption transforms data into a coded format that can only be read by authorized parties, safeguarding sensitive information during transmission. Protocols such as SSL/TLS (Secure Sockets Layer/Transport Layer Security) ensure that data exchanged between users and servers is encrypted, protecting against interception and cyberattacks. Implementing encryption not only secures communications but also builds trust with customers who expect their data to be handled securely.