Many Internet of Things (IoT) devices ship with default 8-digit administrative passwords. Security teams use numeric lists to scan corporate networks for unextended or default hardware configurations. Tools Used with Wordlists
The Ultimate Guide to 8-Digit Password Wordlists: Security, Risks, and Best Practices in 2026
There are exactly 100 million combinations. On modern hardware, a computer can test all of these in a matter of seconds. Lowercase Alpha (a-z): 26826 to the eighth power results in roughly 208.8 billion combinations. Alphanumeric (a-z, A-Z, 0-9): 62862 to the eighth power jumps to 218 trillion combinations. Full ASCII (Including symbols): 95895 to the eighth power reaches over 6 quadrillion combinations. Types of 8-Digit Wordlists 1. The Pure Numeric List 8 Digit Password Wordlist
Cybersecurity professionals and penetration testers use specialized tools to generate targeted wordlists. These same tools are also used by attackers.
[Target Hash/Handshake] ---> [GPU Cracking Tool (Hashcat)] ^ | (Feeds 100M Permutations) [8-Digit Password Wordlist] 1. Wi-Fi WPA2/WPA3 Auditing Many Internet of Things (IoT) devices ship with
The most effective security strategy is not simply making an 8-character password "complex," but transitioning to longer passphrases or, ideally, using a password manager to enable longer, unique passwords for every account. Passwords are often the first line of defense—making them as strong as possible is the easiest way to ensure peace of mind.
While 8 digits seem robust compared to a 4-digit PIN, they are still considered insecure for high-stakes accounts (e.g., email, banking) due to the finite nature of the numeric set. 1. Speed of Brute-Force Attacks On modern hardware, a computer can test all
An attacker obtains an encrypted database or password handshake (such as a WPA2 Wi-Fi handshake). They run the 8-digit wordlist against the hash locally. Because there are no rate limits, the password will be broken almost instantly.
If you have a purely numeric password (a PIN code), an 8-digit password has a keyspace of $10^8$. That is (from 00000000 to 99999999).
Unlawful use can result in prison time, fines, and lifetime bans from IT work.