[city41]

My main concern with this is account security questions like "what was your first car?". With how much information people put online these days, these questions are often pretty easy to crack. Some websites allow you to change your password after simply answering a couple of these.

I personally avoid this problem by generating "answers" as passwords in 1Password. But the vast majority of people don't do this.

[wtetzner]

I agree. I think security questions are a broken idea. Sites will validate that you have a strong password, and then have you fill in the security questions, which are often either easy to guess or easy to google.