Password Strength Analyzer

A Python desktop tool that checks password strength in real time. Built during my Prodigy InfoTech cybersecurity internship.

Strength criteria checked

• Minimum length (NIST recommends at least 8, ideally 12+)
• Uppercase and lowercase characters
• Digits and special characters
• Detection of common weak passwords (password123, qwerty, etc.)

What I learned

NIST SP 800-63B actually discourages mandatory complexity rules in favour of longer passphrases. This project made me research why "P@ssw0rd" scores high on most checkers but is still weak.

How to run

python PasswordCheck.py

Planned improvements

• Add HaveIBeenPwned API integration to check if password appears in breach databases
• Export results to a report file