Bella, a security professional working at an it firm, finds that a security breach has occurred while transferring important files. Sensitive data, employee usernames. and passwords are shared In plai

FTP (File Transfer Protocol) transmits credentials and file data in plaintext with no encryption, which is the exact vulnerability Bella is trying to fix, not the solution.

HTTPS (HTTP Secure) wraps standard HTTP traffic inside a TLS session, which uses digital certificates issued by a Certificate Authority to authenticate the server and negotiate an encrypted channel. This directly addresses both the plaintext transmission of usernames and passwords and the session hijacking risk, because all data including session tokens is encrypted end-to-end.

FTPS (FTP Secure) adds TLS to the FTP protocol for secure file transfers, but it is a file transfer protocol and does not address general web application session traffic where session hijacking occurs.

IP (Internet Protocol) is a Layer 3 routing protocol that handles packet addressing and forwarding; it provides no encryption, authentication, or session-level security.