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Alphanumeric password

Alphanumeric password definition

An alphanumeric password is a type of password that includes both letters (alphabetic characters) and numbers (numeric characters). Depending on the password requirements, it can also have other characters like symbols or punctuation, but at its simplest, an alphanumeric password consists of letters and numbers. This type of password is typically used for securing access to digital systems, such as email accounts, social media profiles, or online banking.

See also: password protection, one-time password

Examples of alphanumeric passwords

  • He11o (not recommended)
  • T3mP9xL2uY8cJ4
  • W1nT3r*SuMm3r2023!

Features of strong alphanumeric passwords

  • Length. Make your passwords long. A good rule of thumb is to use at least 12 characters.
  • Complexity. Mix it up. Combine uppercase and lowercase letters with numbers and symbols.
  • Unpredictability. Don't use common phrases or predictable patterns. Avoid personal information that someone might guess or be able to find out, like your pet's name or your birthdate.
  • Uniqueness. Don't reuse passwords. If one account gets compromised, others could be at risk.
  • Manageability. Consider using a password manager. It can generate complex passwords for you, remember them, and input them when needed. This allows you to have unique, complex passwords for each of your accounts without the need to remember them all.