Having a verified email address at a big webmail provider provides some guarantee by proxy that a human is behind the address (or at least has figured out how to abuse the account creation system at the mail provider).
http://www.blackhatworld.com/blackhat-seo/seo-other/72970-youtube-gmail-hotmail-yahoo-accounts-highest-quality-lowest-price.html For unknown domains this question is harder. By the way, is Mozilla planning to provide email addresses? Monica ----- Original Message ----- > > On Oct 17, 2013, at 4:44 PM, Ryan Kelly <[email protected]> wrote: > > > > > Hi All, > > > > > > The current Firefox Accounts API does not have any protections around > > account-creation - you submit an email address and password, click the > > verification link, and you're done. > > > > Should we be looking to add a captcha or similar into this flow to > > limit signups to Real Humans Only? > > > > No CAPTCHAs. We're not going to push our problems on our users. > > Which means we need a solution for our problems. So, yeah, I'd prefer some > rating limiting approach. > > I'm not so strongly opposed to context dependent CAPTCHAs or similar things, > e.g., a user has attempted 5 failed logins and the next one is going to > require some extra work. > > -chris > > > > My instinct says no, as we've not had a good experience with captchas > > in the past - IIRC correctly there was a bug filed to disable them in > > the Sync account creation flow because they were more trouble than not. > > > > The alternative is to do request-level rate limiting, which is already > > in the works and could easily be special-cased to add stronger limits on > > the account-creation API. > > > > > > Thoughts? > > > > > > Ryan > > _______________________________________________ > > Sync-dev mailing list > > [email protected] > > https://mail.mozilla.org/listinfo/sync-dev > > _______________________________________________ > Sync-dev mailing list > [email protected] > https://mail.mozilla.org/listinfo/sync-dev > _______________________________________________ Sync-dev mailing list [email protected] https://mail.mozilla.org/listinfo/sync-dev

