Recently news appeared that Cloudflare had a bug that let user data be compromised between 2016.09.22. and 2017.02.18. Since Scirra recently started using Cloudflare, the scirra.com domain is in the list of the possibly affected sites. I might be paranoid, but I think users should change their passwords. Also, it's worth to take a look at the full list (for ex. HumbleBundle and Discord were affected too).
The full list of possibly affected domains can be found here:
If you are also thinking of using a password safe, I'd recommend KeePass:
Thanks- I just changed my password.
I guess we will know if Credit Card numbers start being used and our arcade games start showing up in other places.
I hate the cloud and it is a gold mine for hackers and no matter how secure they say it is it gets hacked all the time.