I've had Silverstripe installed for years. Same password and login details for years too. I log in every morning to update the site. Yesterday morning the login page returned the error 'That doesn't seem to be the right e-mail address or password. Please try again.'
NO files have been changed. Nothing has been changed. No reason for this message. Tried from a few different computers. No luck.
I then used the 'forgotten my password reset link' which worked. I saved a new password. Logged into the CMS and all OK.
Then again this morning... same error 'That doesn't seem to be the right e-mail address or password. Please try again.' New password not working after yesterday's reset.
I can't figure out what is going on. Have I been hacked? Went into file history and couldn't see any modifications.
It mean password has been changed, you should dump MemberPassword table beetween two hours to see if have any change.
Or, change password, download ur site then run it on ur computer, then increase 3 hours for ur computer time, then login again. If you can still login, it mean ur site got hacked, else check the site code to see if has a password expiration feature.