Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!news-out.readnews.com!transit4.readnews.com!panix!MIX!Blackbird From: billy@MIX.COM Newsgroups: comp.sys.mac.system Subject: Re: Security Scare ? Date: Sun, 24 Nov 2013 18:38:53 +0000 (UTC) Organization: PANIX Public Access Internet and UNIX, NYC Lines: 16 Message-ID: References: NNTP-Posting-Host: panix5.panix.com X-Trace: reader2.panix.com 1385318333 19780 166.84.1.5 (24 Nov 2013 18:38:53 GMT) X-Complaints-To: abuse@panix.com NNTP-Posting-Date: Sun, 24 Nov 2013 18:38:53 +0000 (UTC) Xref: csiph.com comp.sys.mac.system:52605 Wes Groleau writes: > I don't know whether he had sophisticated audio components. I would > doubt it--they would be of little use in his primary work. He > hypothesized ultrasonics, but I read another article suggesting that > it may be possible to get a reasonable bandwidth from a dual-tone scheme > and be able to hide it in normal fan noise. Again, this sort of thing is easily observable with a rather small investment in test instrument rentals. Billy Y.. -- sub #'9+1 ,r0 ; convert ascii byte add #9.+1 ,r0 ; to an integer bcc 20$ ; not a number