Article View: comp.security.misc
Article #682Re: Security of telephone Answering machines
From: Rob Slade
Date: Fri, 11 Dec 1992 21:43
Date: Fri, 11 Dec 1992 21:43
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1725 bytes
Vince Manis brought this up on RISKS a few years back. At the time he had a machine which had a three digit, user-selectable code. One of the responses gave a numeric string which contained all possible combinations of three digits: the poster estimated, based upon the length of time you had to enter the code, that at most two calls would be necessary to "hack/crack" the machine. My own machine has a four digit, factory set code. It is rendered slightly more secure by the fact that the company makes several models, not all of which have remote access, but which all sound identical. One machine I bought for a company I was contracting for had a single digit security code. My daughter's machine is even worse: it has a three digit code, but any of the three digits, repeated three times, is valid for access! ============== Vancouver ROBERTS@decus.ca | "If you do buy a Institute for Robert_Slade@sfu.ca | computer, don't Research into rslade@cue.bc.ca | turn it on." User p1@CyberStore.ca | Richards' 2nd Law Security Canada V7K 2G6 | of Data Security
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<1992Dec11.214305.12831@softwords.bc.ca>Path:
arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!udel!wupost!gumby!destroyer!cs.ubc.ca!news.UVic.CA!softwords!cue.bc.ca!rsladeReferences:
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Newsgroups: comp.security.misc Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!udel!wupost!gumby!destroyer!cs.ubc.ca!news.UVic.CA!softwords!cue.bc.ca!rslade From: rslade@cue.bc.ca (Rob Slade) Subject: Re: Security of telephone Answering machines Message-ID: <1992Dec11.214305.12831@softwords.bc.ca> Keywords: password, security, answering machine Sender: news@softwords.bc.ca (CNews) Nntp-Posting-Host: cue.bc.ca Organization: Computer Using Educators of B.C., Canada References: <1ftp5iINNt33@iskut.ucs.ubc.ca> Date: Fri, 11 Dec 92 21:43:05 GMT Lines: 22