We've had people ask us about the Cloudflare leak reported a few days ago. We are Cloudflare customers, and it is possible that login cookies or passwords may have been exposed as part of the incident. We believe the risk to you is relatively low -- it was a small percentage of Cloudflare's requests that were involved over a relatively short period of time, and we haven't found any evidence that anything from us was among them. This is not an absolute guarantee that none of your accounts were affected, but we don't think the likelihood is very high.
Because we believe the risk to be low, we aren't automatically expiring everyone's session cookies and requiring you to log back in and change your password -- whenever we do that, it does lock some people who they can't remember their passwords and no longer have access to their confirmed email addresses out of their accounts, and we believe that will affect more people in this case.
Still, it's always a good idea to change your passwords regularly, and now would be a good time to do it, especially if you want peace of mind. We have a FAQ on how to change your password. If your browser logs you in automatically and you don't remember your password, you can reset it. If you've forgotten your password and no longer have access to your most recent confirmed email address, you can have the password reset email sent to any email address you've confirmed on your account by entering both your username and your old email address at the Lost Info page.
Unfortunately, if you've forgotten your password and no longer have access to any email address you've confirmed on your account, you probably won't be able to reset your password. In some cases, if you've previously paid for your account, we can validate your payment details to confirm your identity and reset your password. If you can't reset your password, but think you may have paid for your account in the past, you can open a support request in the Account Payments category and I'll check into it for you.
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EDIT 26 Feb noon EST: LJ unblocked and whitelisted us this morning, so all is working again!