Information for: DEVELOPERS   PARTNERS

Password strength in Acquia Cloud

Acquia Cloud enforces a security policy for passwords used to access the Acquia Cloud user interface. This security policy determines how strong (resistant to guessing) user’s passwords must be.

The password strength policy applies only to the Acquia Cloud user interface, and doesn’t apply to your Drupal websites.


For password security policies in Acquia Cloud Site Factory, see Minimum password strength.

Password requirements on Acquia Cloud

Acquia Cloud applies several rules to test a password’s strength, based on the entropy (randomness) of the sequences in the password. All passwords used for accessing the Acquia Cloud user interface must meet the following criteria:

  • Is at least 12 characters in length
  • Has at least one capital letter
  • Has at least one lower case letter
  • Has at least one special character
  • Doesn’t reuse any of the user’s previous 24 passwords

Testing password security when changing passwords

As you type a new password, the Acquia password policy system tests and reports the password’s strength. If you try to create a password that doesn’t meet Acquia’s password strength requirements, Acquia Cloud will display an error message describing why the password strength is insufficient, such as the following message:

The following issues were detected with your password:
* It is fewer than 12 characters.
* It doesn't include at least one special character.

Protecting against brute-force attacks

The Acquia Cloud user interface protects you from brute-force attacks by the following policies limiting the total number of sign-in attempts:

  • After three failed sign-in attempts during a 30 minute timeframe from a single user and IP address, Acquia Cloud blocks the user name (email) and IP address combination from signing in for one hour.
  • After 50 failed sign-in attempts in an hour from a single IP address, Acquia Cloud blocks the IP address from signing in for one hour.