Hacker News Reader

Not that it's a very strong excuse, but it -can- be fairly annoying if the prompt appears and your phone is dead (or not nearby, or lost).

View on HN

That's why as part of setting up 2F they suggest you generate and print a list of backup verification codes. 2F wouldn't even be an option if they didn't provide an emergency out.

Reply on news.ycombinator.com