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Obviously some sort of mechanism for limiting login attempts is a security requisite. While I like the concept of an exponentially increasing time between attempts, what I'm not sure of storing the information. I'm also interested in alternative solutions, preferrably not including captchas.
I'm guessing a cookie wouldn't work due to blocking cookies or clearing them automatically, but would sessions work? Or does it have to be stored in a database? Being unaware of what methods can/are being used so I simply don't know what's practical.
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Use some columns in your users table 'failed_login_attempts' and 'failed_login_time'. The first one increments per failed login, and resets on successful login. The second one allows you to compare the current time with the last failed time.
Limiting the number of failed sign-ins can help you prevent security threats such as brute force attacks. You can limit the number of failed login attempts on your PC by configuring the Account lockout threshold, the Reset account lockout counter, and the Account lockout duration settings.
Open Event Viewer in Active Directory and navigate to Windows Logs> Security. The pane in the center lists all the events that have been setup for auditing. You will have to go through events registered to look for failed logon attempts.
Solution. Review the existing Spring Security's authentication class, the “locked” feature is already implemented. To enable the limit login attempts, you need to set the UserDetails. isAccountNonLocked to false.
Use some columns in your users table 'failed_login_attempts' and 'failed_login_time'. The first one increments per failed login, and resets on successful login. The second one allows you to compare the current time with the last failed time.
Your code can use this data in the db to determine how long it waits to lock out users, time between allowed logins etc
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