Comment by vasco

So what are you doing here?

> Ask HN: Did HN just start using Google recaptcha for logins? [0]

> dang

> No recent changes, but we do sometimes turn captchas on for logins when HN is under some kind of (possible) attack or other. That's been happening for a few hours. Hopefully it goes away soon.

[0] https://news.ycombinator.com/item?id=34312937