Overview

This article explains the key differences between passwords and passphrases, and why passphrases are recommended for enhanced security across software applications, websites, and computer systems.

Definitions

Password

A traditional password is a random combination of letters, numbers, and special characters, with a minimum recommended length of 12 characters.

Passphrase

A passphrase is a security credential that uses a sequence of words or a complete sentence, typically:

• Minimum length of 14 characters
• Includes spaces between words
• Can be a meaningful or nonsensical sentence
• Supports up to 127 characters in most systems

Advantages of Passphrases

Enhanced Memorability

Users find passphrases easier to remember compared to complex passwords. For example, the phrase "I smile when I see purple" is more memorable than a random string like "$ynJ8-0".

Improved Security Features

1. Greater length, providing better protection against brute force attacks
2. Natural incorporation of spaces, uppercase, and lowercase letters
3. Easy integration of punctuation and special characters
4. Support for extensive character counts (up to 127 characters in major systems)

Security Best Practices for Passphrases