These weak codes are so popular that they are often the first to be checked in a dictionary attack. Patterns like 123456 , 111111 , and `000000 are extremely common, and a security professional needs to test for them.
Some popular resources that offer free 6-digit OTP wordlists include: 6 digit otp wordlist free
One-Time Passwords (OTPs) serve as a critical layer of authentication for online banking, account recoveries, and two-factor authentication (2FA) systems. Because a standard 6-digit OTP relies purely on numbers, security professionals and penetration testers often utilize a "6-digit OTP wordlist" to evaluate how resilient their authentication systems are against automated guessing attacks. These weak codes are so popular that they