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Re: Google Accounts Security Vulnerability
From: Michael Gray <mgray () emitcode com>
Date: Thu, 17 May 2012 11:43:49 -0700

I'm not interested in providing that information. You can reproduce it
without knowing my user name.
On May 17, 2012 8:45 AM, "Mike Hearn" <hearn () google com> wrote:

If you provide the name of the account you're logging in to, we can go
take a look what's happening.

On Thu, May 17, 2012 at 5:29 PM, Michael Gray <mgray () emitcode com> wrote:
Regardless of how you say it works, I can bypass it every time it would
seem. Again, by using the method in my original post. It's likely you
have a
bug if this isn't the functionality you're after.

I appreciate the statistics but they mean little to me.

Thank you for taking the time to respond. I hope my suggestions and
will assist you in correcting these issues

On May 17, 2012 5:51 AM, "Mike Hearn" <hearn () google com> wrote:

I understand your concerns, however they are not valid. You can be
assured of the following:

1) We do not see this system as a replacement for passwords. If we
block a login the user is notified and asked if it was them, if it
wasn't we ask them to pick a new password. In very high confidence
cases we will immediately force the user to choose a new password,
because passwords are still the first line of defense.

2) We do not see this system as a replacement for 2-factor
authentication. However the reality is that the vast majority of our
users do not use 2-factor authentication and this is unlikely to
change any time soon. 2SV imposes a significant extra burden on the
user such that despite heavy promotion many users refuse to sign up,
and of those that do, many choose to unenroll shortly afterwards.
Therefore we also provide this always-on best effort system as well.

3) In fact it is very effective at stopping the large, botnet driven
types of attacks we see on a daily basis and so saying it doesn't add
any security is wrong. Since going live the system has successfully
defended tens of millions of users who have a compromised password. A
single unrepresentative data point based on one account isn't enough
for you to judge the utility of the system, whereas we can clearly see
the stopped campaigns (and drop in number of attempts).

That said, if you have friends and relatives who use Google and you'd
like to to make them more secure, by all means encourage them to set
up two-factor authentication.


Mike Hearn | Senior Software Engineer | hearn () google com | Account
security team

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