[160953] in North American Network Operators' Group

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Re: Network security on multiple levels (was Re: NYT covers China

daemon@ATHENA.MIT.EDU (Jon Lewis)
Wed Feb 20 14:06:08 2013

Date: Wed, 20 Feb 2013 14:05:08 -0500 (EST)
From: Jon Lewis <jlewis@lewis.org>
To: Jay Ashworth <jra@baylink.com>
In-Reply-To: <21410540.6654.1361380405540.JavaMail.root@benjamin.baylink.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Wed, 20 Feb 2013, Jay Ashworth wrote:

> Well, Warren, I once had a discussion with someone about whether dedicated
> DS-1 to tie your SCADA network together were "secure enough" and they asked
> me:
>
> "Does it run through a DACS? Where can you program the DACS from?"

See thread: nanog impossible circuit

Even your leased lines can have packets copied off or injected into them, 
apparently so easily it can be done by accident.

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