Accepting passwords securely in command-line applications requires careful consideration to protect user data from onlookers and system logs. While web interfaces typically hide password input by default, CLI tools must implement additional measures to prevent passwords from appearing in shell history or on-screen. This can be addressed by using standard input rather than CLI arguments or flags, but to avoid displaying typed characters—even as asterisks—the Go extension package `golang.org/x/term` offers the `ReadPassword` function, which reads input without echoing it to the terminal. For password verification, the bcrypt hashing algorithm is recommended, as it salts hashes to thwart attacks like rainbow tables, but unlike basic hash functions, bcrypt hashes cannot be directly compared and require specialized comparison functions such as `CompareHashAndPassword`. Though bcrypt remains suitable for legacy systems, stronger algorithms like Argon2i or Scrypt are preferred in production. As a practical application, building a CLI tool to check if passwords have been compromised—by securely hashing inputs and cross-referencing with the "Have I Been Pwned" API—highlights the importance of combining secure input handling with robust password hashing techniques.