A complete 1-million-line list is used for thorough brute-force testing. However, humans are predictable. If you are testing systems where users pick their own 6-digit PINs (like banking apps or lock screens), an focuses on common human patterns first. Common 6-Digit PIN Patterns to Prioritize Sequential numbers: 123456 , 654321 , 000000 , 999999
The fastest way to create a full 6-digit wordlist is using Python.
The most critical aspect of using wordlists is legality. These resources are intended for educational purposes and for authorized penetration testing only. Unauthorized use against any application, system, or service you do not own or have explicit written permission to test is illegal and unethical. Misuse of these tools constitutes a cyberattack in most jurisdictions.
A standard 6-digit OTP consists purely of numbers from 0 to 9 . Because there are six positions and ten possible digits for each position, the math is straightforward: 6 digit otp wordlist free
Most secure platforms allow a maximum of 3 to 5 failed attempts before invalidating the OTP completely and locking the request window for a set duration (e.g., 15 minutes). 2. Short Expiration Windows (TTL) An OTP should have a strictly enforced Time-To-Live (TTL).
A standard sequential 6-digit wordlist takes up roughly 7 Megabytes (MB) of storage.
If you are a developer looking for free wordlists for testing, I can show you how to generate variations that include: Sequential patterns Share public link A complete 1-million-line list is used for thorough
Limit the validity of the code to 2–3 minutes for SMS/Email OTPs, and 30–60 seconds for Authenticator Apps (TOTP).
What Is a 6-Digit Code? Uses, Security & Best Practices Explained
A 6-digit OTP wordlist is a collection of unique, six-digit codes used for one-time password authentication. These codes are typically generated randomly and are used to verify a user's identity. A wordlist of 6-digit OTPs can be used for various purposes, including testing, simulation, or even brute-force attacks (although the latter is not recommended). Unauthorized use against any application, system, or service
You can create a custom script to generate these numbers. This is useful if you need to filter for specific criteria, like avoiding common patterns # Simple script to generate 000000-999999 otp_wordlist.txt # f-string formatting ensures leading zeros (e.g., 000001) Use code with caution. Copied to clipboard Security Considerations Rate Limiting : Most modern platforms (like Google or bank apps) have strict security measures
Typically a plain text file ( .txt ) with each line containing a 6-digit number (e.g., 000000 , 000001 , ..., 999999 ).
In the world of digital security, the six-digit One-Time Password (OTP) has become a universal standard. From Google Authenticator to SMS-based bank logins, the 6-digit code acts as the second layer of defense in two-factor authentication (2FA). But for security researchers and penetration testers, there exists a niche but critical question: