After updating, I could no longer log in to my dashboard. I could navigate to /wp-admin/ just fine and enter my login details, but no matter what, I was immediately redirected to my homepage, and was not logged in.
In order to access my dashboard, I renamed the better-wp-security plugin folder via FTP, and now I can log in as normal. On my plugins page, it lists "iThemes Security", but it's deactivated.
I'm just wondering how exactly to proceed. Should I delete better-wp-security via FTP, and reinstall "iThemes" from scratch? Are there any other options?