-Caveat Lector-

> Nortel's (or any similar) "power line internet" is a potential
> back door into every non-battery powered (or non-isolated)
> computer -- all via the power cord.  Required: certain hardware
> and/or software installed, infected, and/or embedded in the
> targeted computer -- or other intelligent, networked appliance


   Nortel's Digital PowerLine has been cancelled -- in the UK --
   but this backdoor potential is still there, in any local area.
   A fully- secure computer system might require a specially
   isolated power supply, if not a means to monitor the power
   cord to rule out intermittant, unauthorized data transfers.


 http://www.telegraph.co.uk

 Bright sparks cut the wire on Web electrics
 --------------------------------------------
 By Mark Ward, Sep. 16, 1999

 THE plug has been pulled on an attempt to provide
 Internet access by piping data down power lines.

 Nor.Web has been developing Digital PowerLine for two
 years, using mains cables rather than telephone lines.
 The data would reach substations via a conventional
 fibre network and be distributed to homes via
 electricity cables.  The company claimed that Digital
 PowerLine could download at up to 2mbit/s -- far faster
 than even the quickest modems.

 Unfortunately, its promise has not paid off.  A spokesman
 said that fierce competition for customers who want
 high-speed Internet connections and the imminent arrival
 of cable modems and ADSL put the viability of the project
 in doubt.  As a result, United Utilities and Nortel
 Networks decided to end the project.

 Amateur radio buffs had claimed that pumping data down
 the same cables as mains electricity caused interference
 with some radio frequencies.  The hams said the data was
 being rebroadcast by street lamps also connected to the
 substations handling the data.  Nor.Web denied any such
 problems.



 � Copyright Telegraph Group Limited 1998.




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