So a bug affected cloudflare for months  and may have leaked private data of HTTPS sessions.
What does that mean? Well, it means you better change your password for all the impacted websites.
Why do I post that here? Because according to the current list  (wip), blenderartists.org is impacted.
So I suggest you change your password now and check for yourself the list of websites.
And don’t forget, using a password manager is highly recommended as a good practice when it comes to security.
I hope this will help