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- From: cstadbg@csv.warwick.ac.uk (Mr M J Brown)
- Newsgroups: sci.electronics
- Subject: Anti Shoplifting Devices/Mag media
- Date: 17 Nov 1992 10:06:52 -0000
- Organization: Computing Services, University of Warwick, UK
- Lines: 35
- Sender: csatdbg@csv.warwick.ac.uk
- Distribution: world
- Message-ID: <1eag7sINN8rf@lily.csv.warwick.ac.uk>
- NNTP-Posting-Host: lily.csv.warwick.ac.uk
-
- Recentley, bdenckla@husc10.harvard.edu (Benjamin Denckla) wrote
-
- >This morning I walked in and out of a number of shops with
- >anti-shoplifting detectors similar to the security devices they have in
- >libraries, i.e. two vertical inverted U-shaped bars on either side of the
- >exit. Then I found that the disk I had been carrying had some errors on
- >it which were not there beforehand. I assume that this is some kind of a
- >detector for non-demagnetized, i.e. not bought merchandise. I have heard
- >that the demagnetizing pads on the check out-counter will erase credit
- >cards so I try to stay away from them. But can anyone tell me if my disk
- >could have been damaged by the detectors? Also, how far away should I
- >keep magnetic media like disks, credit cards, and DAT's from the
- >demagnetizing check out counter pad? is a foot enough? If anyone could
- >help I would really appreciate this as this is a very scary situation,
- >especially without information as to exactly how scared I should be.
-
- Legally, if it can be proved you have suffered a loss of data due to these
- devices, who can you hold responsible? The shop? .... Interesting....
-
- BTW most of these systems work on radio frequencies, and are not magnetic.
- Otherwise it would screw up credit cards etc. that people would have taken
- into the shop with them. Maybe 'tis coincidence, but then again there could be
- exceptions....
-
- The demagger at the desk I should keep away from, they *will* damage disks if
- you get near enough....
-
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- _/ _/ _/ _/ _/ _/_/_/_/ |
- _/_/ _/_/ _/ _/_/ _/ | Michael Brown
- _/ _/ _/ _/ _/ _/_/ |
- _/ _/ _/ _/_/ _/ | cstadbg@csv.warwick.ac.uk
- _/ _/ _/ _/ _/ _/_/_/_/ _/ |
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