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From: king@kestrel.ARPA (Dick King)
Newsgroups: comp.dcom.modems
Subject: Re: What number am I calling from?
Message-ID: <15955@kestrel.ARPA>
Date: Sat, 27-Dec-86 14:05:36 EST
Article-I.D.: kestrel.15955
Posted: Sat Dec 27 14:05:36 1986
Date-Received: Sat, 27-Dec-86 20:46:42 EST
References: <750@sdcc12.ucsd.EDU> <1706@sunybcs.UUCP> <722@cooper.UUCP> <1498@kitty.UUCP> <2263@well.UUCP>
Distribution: na
Organization: Kestrel Institute, Palo Alto, CA
Lines: 40
In-reply-to: rab@well.UUCP's message of 27 Dec 86 11:01:22 GMT

Posting-Front-End: GNU Emacs 18.32.5 of Fri Dec 26 1986 on kestrel (berkeley-unix)


In article <2263@well.UUCP> rab@well.UUCP (Bob Bickford) writes:

   Path: kestrel!labrea!decwrl!decvax!ucbvax!ucbcad!ames!lll-lcc!ptsfa!well!rab
   From: rab@well.UUCP (Bob Bickford)
   Newsgroups: comp.dcom.modems
   Summary: 900 ohms , ANAC
   Date: 27 Dec 86 11:01:22 GMT
   References: <750@sdcc12.ucsd.EDU> <1706@sunybcs.UUCP> <722@cooper.UUCP> <1498@kitty.UUCP>
   Distribution: na
   Organization: Whole Earth Lectronic Link, Sausalito, CA
   Lines: 77

   In a previous article Larry Lippman writes:
   >   	Dialing a three-digit access code which immediately provides an
   > 	announcement over the telephone circuit.  This unrestricted
   > 	implementation has generally been considered a "security" problem
   > 	(use your imagination) by telephone company management; I am
   > 	somewhat surprised to see people posting articles reporting the
   > 	implementation of unrestricted ANAC.

      Why?  I'm afraid my imagination does not present me with any
   compelling reason to belive this a 'security risk'.  Certainly it
   is of little or no use to a telco cracker.

I can think of one.  If someone wants to tap your line, he can find it
more easily, further from your house.  For example, it would be
possible for him to do about an hour's work at a junction box.

   > Larry Lippman @ Recognition Research Corp., Clarence, New York


   -- 
   Robert Bickford    {hplabs, ucbvax, lll-lcc, ptsfa, msudoc}!well!rab
   terrorist cryptography DES drugs cipher secret decode NSA CIA NRO IRS
   coke crack pot LSD russian missile atom nuclear assassinate libyan RSA
    The above is food for the NSA line eater.  Add it to your .signature and
    you too can help overflow the NSA's ability to scan all traffic going in or
    out of the USA looking for "significant" words.  (This is not a joke, sadly.)

-dick