[dba-Tech] Innovation: The Wi-Fi database that shamed Google

Jim Lawrence accessd at shaw.ca
Tue May 11 08:38:14 CDT 2010


I am sure only the UK government would be interested in that data. Maybe I
should ask the UK government for pictures of my trip as I am sure they have
a better record than I do. ;-)

Jim



-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Tydda Jon -
Slough
Sent: Tuesday, May 11, 2010 1:45 AM
To: Discussion of Hardware and Software issues
Subject: [dba-Tech] Innovation: The Wi-Fi database that shamed Google


http://www.newscientist.com/article/dn18844-innovation-the-wifi-database-tha
t-shamed-google.html


By now, most of us in the US, the UK and Australia, plus many elsewhere in
Europe, have got used to the fact that images of almost every house on every
street are available online for all to see via the Street View facility in
Google Maps.
But last week many were shocked to learn that while the advertising giant's
camera-equipped cars were zipping past our front doors, they were not just
collecting panoramic photos. Wi-Fi antennas on the cars were hunting down
wireless computer networks, and equipment inside was recording the networks'
names, locations and the unique MAC address of the routers supporting them.
The revelation has, not for the first time, prompted a wave of accusations
that Google doesn't care about privacy anywhere near enough.

Map maker

Google says it has collected the data in order to improve the accuracy with
which smartphones can pinpoint their location on Google Maps, especially in
city centres where GPS may be unreliable.
Cellphone mapping apps can improve matters by drawing on knowledge of which
cellphone tower the phone is in contact with, but Google realised that even
greater accuracy is possible if the phone can note details of nearby
wireless routers. The server supplying Google Maps to the phone can then
calculate a precise position.
Millions of smartphone users worldwide have already benefited from Google's
database, which has been live in the US since late 2007.

Not so strange

Google is not alone in gathering Wi-Fi data for location purposes. Skyhook
Wireless of Boston uses Wi-Fi-scanning cars to provide a similar service,
which is used by the default mapping app on some Motorola phones.
Although Google has not made any particular effort to keep its
data-gathering activities secret, neither has it declared what it has been
doing. It was not until last week that Germany's Federal Commissioner for
Data Protection, Peter Schaar, discovered that Street View cars operating in
Germany were harvesting Wi-Fi data. He says he had not been made aware of
this when he granted Google permission to take photographs for Street View.
In the UK, the Information Commissioner's Office was similarly surprised.
Though the commissioner had met Google before Street View cars began
patrolling the UK, "at no point did Google make us aware that it would be
scanning Wi-Fi too", says ICO spokesman Nick Day. The ICO says it is seeking
more information from Google, while Schaar is demanding that the firm delete
any Wi-Fi data collected "unlawfully".

Open up

Google's global privacy counsel, Peter Fleischer, says the data protection
authorities were not informed of the Wi-Fi trawl because "this is all
publicly broadcast information which is accessible to anyone with a Wi-Fi
enabled device". No law prohibits its collection, he says. And unlike Street
View images, the Wi-Fi data will remain at the data centre providing the
mapping service, and will never to be published online, Fleischer says.
The data commissioners have not spelled out the risks of a leak from the
Wi-Fi database, and are unlikely to press for laws against Wi-Fi data
collection any time soon. But the outcry over Google's now not-so-secret
Wi-Fi database leads to a clear conclusion, says Simon Davies, head of
pressure group Privacy International. "Keeping the data collection secret
was a bad decision from a community relations perspective," he says.
Fleischer seems to agree. "It's clear with hindsight that greater
transparency would have been better," he says. When pushing technical
boundaries with other people's data, a little openness goes a long way.


Jon



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