Environmental activism site Care2.com’s website was hacked revealing usernames and passwords for the sites nearly 18 million users. The next time you login to Care2, you will be automatically emailed a new password, which will enable you to access your Care2 account as usual. Yet its unknown that who was the hackers,but Care2 have IP Address that used in the attack was from Russia. Hackers use all sorts of techniques to disguise their identity and location though, so they are not sure about from where the attack originated.
Source: https://thehackernews.com/2012/01/environmental-activism-site-care2.html