changing-password-complexity.md

---
title: Password complexity
redirect_from:
  - /docs/latest/operations-guide/changing-password-complexity
---

# Password complexity

Metabase offers a couple controls for administrators who prefer to increase the password requirements on their user accounts.

    export MB_PASSWORD_COMPLEXITY=strong
    export MB_PASSWORD_LENGTH=10

The settings above can be used independently, so it's fine to use only one or the other.  By default Metabase use complexity = `normal` and a password length of 6.  The following options are available for complexity choice:

* `weak` = no character constraints
* `normal` = at least 1 digit
* `strong` = minimum 8 characters w/ 2 lowercase, 2 uppercase, 1 digit, and 1 special character

By default, Metabase also prevents users from setting passwords that are in a list of common passwords (like `qwerty123` and
`passw0rd`). Changing the complexity requirement to `weak` disables this behavior.