What is the purpose of SSL or TLS in FTPS?

SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are protocols used to secure and encrypt data transmitted over networks. In the context of FTPS (FTP Secure), which is an extension of the File Transfer Protocol (FTP), the primary purpose of using SSL or TLS is to provide encryption for the FTP traffic. This means that any data transferred between the client and server is securely encrypted, making it difficult for unauthorized parties to read or intercept the data in transit.

By utilizing SSL/TLS, FTPS ensures the confidentiality and integrity of data, protecting sensitive information such as usernames, passwords, and the content of files being transferred. This heightened security is crucial in environments where data breaches could lead to significant risks, such as financial institutions or organizations dealing with personal data.

While other options suggest various functions, such as data compression or managing compatibility, these are not the primary focus of SSL/TLS within the context of FTPS. Instead, the core aim is to facilitate a secure and encrypted data transfer process, which is essential for maintaining data privacy and security during file transfers.