Come on. OpenSubtitles fucked up. And they fucked up big time. In fact, personally, I am not amused at all. But don't get over the top.
Thank you (f/m)
Can agree to that. As far as I'm aware, Subscene was hacked and down for about a week several months ago and so was Addic7ed, but nothing publicly has been admitted. Not really. It's going around. Wouldn't be surprised if others were hacked, too. The others aren't hitting the "headlines" as much, though.
Best thing to do is make sure your passwords are changed. Especially if one used this password for other websites. And as others have mentioned before, best to invest in a password manager for complex passwords.
According to opensubtitles.com website, that site wasn't hacked, but if your passwords are the same there as here (.org), best to change that, too.