We should be careful not to overreact to this news, but at the same time, black hats have done considerable damage in the past by cracking personal information

We should be careful not to overreact to this news, but at the same time, black hats have done considerable damage in the past by cracking personal information and/or one password. It's not unreasonable to expect the same problem to continue now, at least for a small fraction of users.