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Full Disclosure: Re: LloydsTSB Bruteforce Possibility in Memorable Information

Re: LloydsTSB Bruteforce Possibility in Memorable Information

From: <A.L.M.Buxey_at_lboro.ac.uk>
Date: Fri, 31 Aug 2007 21:17:35 +0100

Hi,

> The issue lies in that if the user gets the memorable information
> incorrect they are asked for the same character positions (e.g. 1,
> 7 and 9 again). This continues forever, basically making the
> memorable information pointless because it will not take much to
> brute force it.

not correct. after about 7 attempts the account is locked out at
the username/password part

> No attempts have been made to contact LloydsTSB regarding this
> matter as I was unable to locate contact details and it is not that
> severe.

http://www.lloydstsb.com/security.asp is a good starting point

anyway, LloydsTSB are moving to 2-factor authentication and most
of their customers should have their online backing upgraded
by the end of this year

http://www.vnunet.com/computing/news/2151425/lloyds-tsb-trial-wipes-online

alan

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Received on Aug 31 2007

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