Login Security Solution

A simple way to lock down login security for multisite and regular
WordPress installations.

• Blocks brute force and dictionary attacks without inconveniencing
  legitimate users or administrators

  • Tracks IP addresses, usernames, and passwords
  • Monitors logins made by form submissions, XML-RPC requests and
    auth cookies
  • If a login failure uses data matching a past failure, the plugin
    slows down response times. The more failures, the longer the delay.
    This limits attackers ability to effectively probe your site,
    so they’ll give up and go find an easier target.
  • If an account seems breached, the “user” is immediately logged out
    and forced to use WordPress’ password reset utility. This prevents
    any damage from being done and verifies the user’s identity. But
    if the user is coming in from an IP address they have used in the
    past, an email is sent to the user making sure it was them logging in.
    All without intervention by an administrator.
  • Can notify the administrator of attacks and breaches
  • Supports IPv6

  Thoroughly examines and enforces password strength. Includes full
  UTF-8 character set support if PHP’s mbstring extension is enabled.
  The tests have caught every password dictionary entry I’ve tried.

  • Minimum length (customizable)
  • Doesn’t match blog info
  • Doesn’t match user data
  • Must either have numbers, punctuation, upper and lower case characters
    or be very long. Note: alphabets with only one case (e.g. Arabic,
    Hebrew, etc.) are automatically exempted from the upper/lower case
    requirement.
  • Non-sequential codepoints
  • Non-sequential keystrokes (custom sequence files can be added)
  • Not in the password dictionary files you’ve provided (if any)
  • Decodes “leet” speak
  • The password/phrase is not found by the dict dictionary
    program (if available)

  Blocks discovering user names via the “?author=” query string

  Password aging (optional) (not recommended)

  • Users need to change password every x days (customizable)
  • Grace period for picking a new password (customizable)
  • Remembers old passwords (quantity is customizable)

  Administrators can require all users to change their passwords

  • Done via a flag in each user’s database entry
  • No mail is sent, keeping your server off of spam lists

  Logs out idle sessions (optional) (idle time is customizable)

  Maintenance mode (optional)

  • Publicly viewable content remains visible
  • Disables logins by all users, except administrators
  • Logs out existing sessions, except administrators
  • Disables posting of comments
  • Useful for maintenance or emergency reasons
  • This is separate from WordPress’ maintenance mode

  Prevents information disclosures from failed logins

  Improvements Over Similar WordPress Plugins

  • Multisite network support
  • Monitors authentication cookies for bad user names and hashes
  • Tracks logins from XML-RPC requests
  • Adjusts WordPress’ password policy user interfaces
  • Takes security seriously so the plugin itself does not open your site
    to SQL, HTML, or header injection vulnerabilities
  • Notice-free code means no information disclosures if display_errors
    is on and error_reporting includes E_NOTICE
  • Only loads files, actions, and filters needed for enabled options
    and the page’s context
  • Provides an option to have deactivation remove all of this plugin’s
    data from the database
  • Uses WordPress’ features rather than fighting or overriding them
  • No advertising, promotions, or beacons
  • Proper internationalization support
  • Clean, documented code
  • Unit tests covering 100% of the main class
  • Internationalized unit tests

  For reference, the similar plugins include:

  Read the full description on the official page →