Blocking locator-type devices

[Ben Laurie]

Q G Campbell wrote:
> 
> The idea of a (random) noise generator located next to the microphone is
> of more general application since it allows your phone to continue to
> operate to receive calls.
> 
> Placing your phone in an RF shielding bag or removing the batteries to
> prevent your phone being used as a roving bug has side effects!

I was concerned about it being used for location, not bugging.

> I would hope that such a noise source could be placed in a special
> carrying pouch for the phone which would also serve to make the noise
> source inaudible outside of the pouch.
> 
> But if you genuinely have grounds for believing that the Watchers are
> watching you then worrying about a bugged mobile phone is probably the
> least of your problems. In this case there are also likley to be
> tracking devices, audio and video bugs, etc, in your car, your office
> and in your house in light swithes and sockets, the TV, etc!!
> 
> Those of us who live blameless, if boring lives, have nothing to worry
> about have we.  :-}

Blameless? In whose eyes?

Cheers,

Ben.


> 
> Quentin
> --
> PHONE: +44 191 222 8209    Computing Service, University of Newcastle
> FAX:   +44 191 222 8765    Newcastle upon Tyne, United Kingdom, NE1 7RU.
> ------------------------------------------------------------------------
> "Any opinions expressed above are mine. The University can get its own."
> 
> 
> > -----Original Message-----
> > From: Ben Laurie [mailto:ben@algroup.co.uk]
> > Sent: 14 February 2001 13:07
> > To: ukcrypto@chiark.greenend.org.uk
> > Subject: Re: Blocking locator-type devices
> >
> >
> > Ian Brown wrote:
> > >
> > > After all the mobile phone debate, here's another angle:
> > car tolls...
> > > --
> > > . . .
> > > Both CalTrans and the Golden Gate Bridge District also
> > offer shielded bags
> > > that customers can slip the transponders into when they
> > would prefer to pay
> > > cash. (Golden Gate gives them to everyone, but you have to
> > ask CalTrans.)
> > >
> > > Frank McGonigal, who manages the FasTrak project for
> > CalTrans' contractor,
> > > Adesta Transportation Systems of New Jersey, said he
> > usually tucks the
> > > transponder under his leg when he is testing the system and
> > doesn't want the
> > > toll to register . . .
> >
> > Hmmm ... so do these bags work on mobile phones?
> >
> > Cheers,
> >
> > Ben.
> >
> > --
> > http://www.apache-ssl.org/ben.html
> >
> > "There is no limit to what a man can do or how far he can go if he
> > doesn't mind who gets the credit." - Robert Woodruff
> >
> >
> >

--
http://www.apache-ssl.org/ben.html

"There is no limit to what a man can do or how far he can go if he
doesn't mind who gets the credit." - Robert Woodruff