-----Original Message-----
From: [email protected] [mailto:[email protected]] On 
Behalf Of Ben Scott
Sent: Tuesday, 11 March 2014 11:02 AM
To: [email protected]
Subject: Re: [NTSysADM] RE: One of those dumb things...

On Mon, Mar 10, 2014 at 7:22 PM, Ken Schaefer <[email protected]> wrote:
>>>> Mainly due to the legacy mainframes\"old systems" that are used by many of 
>>>> these institutions.
>>>
>>>   'cause it's a technical impossibility to put a more modern 
>>> front-end/gateway on a public-facing web interface.
>>
>> What's the cost of doing that?
>
>  I have no idea.  I work for a 120-person manufacturing company.
> You're always talking about how you work in the megacorp space.
> What's your guess?
>
> What's the cost of having security measures from the 1950s?
>
> What's the cost in loss of customer trust, after the breach?
>
 > Maybe Target Corp can tell you the answer to the last one.

Just because your password is limited to 8 characters, doesn't mean that the 
entire banking platform's security is from the 1950s...mitigating measures can 
still be put in place (very simple measures, like IPS/IDS for example, or 
account lockouts, or tracking the remote IP addresses attempting to login, or 
adding OTP). 

Secondly, someone managing to guess your 8 character password isn't a systemic 
breach that exposes everyone else's financial position to risk. I doubt there'd 
be much reputational risk involved. For something to expose the *entire* bank's 
(or a substantial subset of the bank's customers), a breach other than via your 
IB password is going to be the issue.

Thirdly, security is a weak as the weakest link. Internet banking (and I'm 
guessing here, since I'm not in that area) is not the weakest link - humans 
are. I'm guessing that for a determined attacker, social engineering a call 
centre employee or fooling a bank employee is probably far easier and rewarding 
than attempting to "hack" modern IB. Though, there would be correspondingly 
more risk.

Lastly, as for the cost - for a decent sized bank, a new online banking 
platform would cost a couple of hundred million dollars, at least - based on 
seeing two such projects. I can only speculate at the cost for the really large 
banks you have in the US - my guess is well over half a billion dollars. And 
that's assuming that the whole thing actually goes well. There is significant 
program risk in undertaking such a piece of work *and* the risk that you 
introduce *new* vulnerabilities. That whole risk/reward trade-off is probably 
why CIOs don't launch online banking refreshes every other year.

Cheers
Ken


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