Which (like Hashcat or John the Ripper) are you planning to use?
: A baseline list ranges sequentially from 00000000 to 99999999 .
If you are a defender: Enforce lockouts, rate-limiting, or move to 10+ alphanumeric.
For years, 8 characters was the gold standard for password length. However, modern hardware has turned what was once a "secure" barrier into a minor speed bump for attackers. Instant Cracking
If you are a penetration tester, using the full 100 million permutation list is inefficient. If you test at 100,000 passwords per second (common for NTLM hashes on a single GPU), the full list takes 16 minutes. 8 digit password wordlist exclusive
A standard utility for creating custom wordlists. To generate an 8-character numeric list, you would use: crunch 8 8 0123456789 -o exclusive_list.txt .
This script loops from 0 to 99,999,999 and uses string formatting ( :08d ) to ensure numbers under 8 digits are padded with leading zeros (e.g., 00000042 ). Optimizing Audits: Intelligent Filtering
In the world of brute-force attacks and dictionary cracking, there is a “goldilocks zone” for numeric passwords:
: Systems can integrate exclusive numeric wordlists into their validation engines to prevent users from selecting highly predictable 8-digit combinations. Which (like Hashcat or John the Ripper) are
Do not rely on "digit length" as security. An 8-digit password that is 1990 + birthday is worthless against an exclusive wordlist. Use 12+ characters, a password manager, or–better yet–a hardware key. And for testers: keep your wordlists clean, curated, and legal.
Older enterprise applications often capped password inputs at 8 characters. Auditors run these specialized lists against legacy password hashes to identify vulnerable employee accounts.
: Using the digits 0-9, an eight-digit code yields exactly 10810 to the eighth power possibilities.
: Sequences like 12345678 are among the most hacked globally . Essential Best Practices For years, 8 characters was the gold standard
Why? Because while 4-digit PINs (10,000 combinations) are trivial to crack and 6-digit (1 million) are only marginally harder, the 8-digit code introduces (00000000–99999999). That is too many for manual guessing, but—with modern GPU hash-cracking or optimized scripts—just few enough to be the #1 target for attackers targeting banking cards, mobile lock screens, and legacy system backdoors.
: Protecting stored passwords requires strong, slow hashing algorithms like bcrypt or Argon2id, combined with unique cryptographic salts. This drastically reduces the speed at which an offline wordlist can be processed.
To understand why specialized dictionaries exist, one must grasp the sheer scale of possibilities. An 8-digit password limited to numeric characters ( 0-9 ) has a maximum keyspace of 100,000,000 (10^8) combinations. While this sounds large, an 8-GPU rig can theoretically crack a numeric-only 8-digit password in under an hour (approximately 48 minutes).
I can provide technical steps or defensive strategies based on your project goals. Share public link
with open("8_digit_wordlist.txt", "w") as f: for i in range(100000000): f.write(f"i:08d\n") Use code with caution.