I made a list of some bitcoin sites that use Cloudflare. While the chances are very small that your info was leaked, it can't hurt to change your passwords on these sites:
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Very comprehensive list, thanks dude very much. Actually we need to modify our passwords, although it is unecessary because the probability of leaked info is extremely low, only 1 out of 3 million.
bitwala, the xapo card, trezor even! The miningpool that I have been trusting the most. This is worse than heartbleed been. And one against a million isn't unlikely
from a gambler's perspective.
Maybe bitcoins very own country has been exceptionally sensitive on DDoS attacks to run into this plot?
Just mentioning none of my other payment services (FIAT based) got affected.