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Online edition of India's National Newspaper Thursday, July 26, 2001 |
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Science & Tech
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Surfing: better safe than sorry
Recent investigations by the Net's watchdog agencies reveal an
alarming increase in officially sanctioned snooping on unwary web
surfers. Anand Parthasarathy reviews Internet's patchy privacy
record and suggests what India's 10 million strong Net-enabled
users should do to repel those prying eyes.
IF YOU want a truly scary demonstration of how much information
about yourself, your physical location, your surfing habits, your
purchasing preferences.... can be gathered by websites which you
visit, try doing the ``Privacy Analysis'' of your Internet
connection that is available at www.privacy.net/analyze. In under
2 minutes, the site will display on screen a 3-4 page report of
the most detailed information it has gleaned from your computer.
How does it do it?
The most personally identifiable information that is captured
everytime you make a communication link over the Internet is your
Internet Protocol or IP address. Often your IP address is
automatically noted by all the companies who put their
advertisements on a web page you visit. Since IP is the lingua
franca of Internet, each computer is assigned a unique address.
When IP addresses are converted to more easily remembered names
like www.privacy.net, they become domain names.
Once an IP address is captured, there are tools which can find
out:
- who owns the network
-where the network is located
-and where else that network has been surfing - useful to
understand the surfer's habit patterns.
-your browser type and your operating system; your monitor
preferences.
The majority of individual Indian surfers who use dialup
connections through a service provider, have one small edge:
their IP address changes within a pool of numbers allotted to the
provider, unlike fixed connection users like cable modem or DSL (
Digital Subscriber Line) accounts or company accounts, who have
static IP addresses
But a privacy analysis test will nevertheless come as a rude
shock to most of us. If you feel vulnerable and are willing to
pay a small price to protect your PC from prying eyes, there are
software solutions like Anonymizer.com to prevent others from
finding out your IP address. The service will act as an
intermediary between you and the web sites you visit, filtering
out any information like software configuration or browsing
habits that can be used to identify you. Anonymizer provides a
surfing box where you type in the address you want to reach
rather than entering it in the location or address bar of your
browser. In other words, tell Anonymizer where you want to go and
it will take you there - safely.
You can download a free version of the software at their website,
but the full featured service costs something like $ 5 a month.
For this you get to control the other irritating intrusion on the
Net - cookies, those small file packets that load on to your hard
disk unless explicitly barred and then sit there for some days or
months. The problem with banning all cookies is that many
information sites will not send you what you want unless cookies
are enabled.
There are also special tools like CookieCrusher which help to
control and use cookies selectively.
A PC connected to the Internet has been aptly compared to a house
where all the doors are wide open - 64K or approximately 65,000
of them, with ``welcome'' written on the doormat!
There is no way you are going to secure all these doors and still
do meaningful surfing.
So the only option is to encrypt those portions of your PC, like
any confidential mail files you may store, with software tools
like PGPfreeware offered for free download by Network Associates.
The latest version 7.0.3 dates from February 2001 and the 7.5 MB
zipped file can be downloaded on a good day with a 56K modem in
about 15-20 minutes. There are other tools ``Nukenabber'' and
``Net-Commando'' which serve as port sentries, alerting you when
someone, somewhere out there is getting too curious about your
PC.
The easiest way to access the free tools among these is to visit
a site like cnet.com and search in the free downloads section. A
search at the site using the keyword ``privacy'' will also take
you to excellent tutorial material - some of which has been
summarized above.
I know what you have surfed
On July 9 a report released by a U.S. based watchdog agency
called the Privacy Foundation, revealed that in addition to the
anonymous watchers on the web described in the preceding
paragraphs - there is another more invidious danger: one of three
employees in the US ( and by inference outside as well) is being
secretly monitored by his or her employer. The report identifies
some of the big U.S. -based companies -like Glaxo, 20th Century
Fox , American Express, Duracell and Barclays - who are known to
keep close tabs on the emails of those who work for them. But as
the Foundation ruefully notes, such surveillance is becoming very
cheap - thanks to software like ``Websense'' or ``Mimesweeper'' -
and employee monitoring will soon be such a commonplace facet of
the work place, that its ethical implications will not even be
discussed.
Of course, the arguments to justify such abuse of privacy are by
now familiar: unfaithful employees who send out company secrets,
employees who surreptitiously apply for other jobs etc.
But the fact that the vast majority of loyal employees are also
abused in the process is usually brushed aside.
How does the snooping take place? Take Web sense Enterprise (
www. websense.com) which claims that 13,000 organisations
worldwide uses its technology. Its system is based on ``pass
through filtering'': all requests for web pages pass through a
control point: either a special proxy server or a caching device.
Web sense examines each request and can be programmed to allow or
deny access to the website.
It works in conjunction with a Master Database of over 2.4
million sites. Thus an employer can block sites which offer mp3
music; or video, or games, or objectionable ``adult'' content.
It can also locate and block sites offering Internet telephony,
radio, online trading etc. The package also generates 60
different reports based on individual or category of site.
New sites visited are logged and can be reviewed by the employer.
The other software popular with employers is said to be the email
scanner ``Minesweeper'', (mimesweeper.com) claiming over 10
million users worldwide.
It has modules to handle breaches of confidentiality, theft of
data, productivity loss ( euphemism for 'time wasting'!) and
damage to reputation.
The easy availability of such tools should convince any employee
that the company email facility can today be limited in scope
sharply and easily, to serve the narrow interests of the
employer.
It is not - as many Indian employees, dewy eyed about being given
``internet access'' think - a perk or a subsidy of some kind.
If you want to enjoy the Net in peace, buy your own Internet
account and do your surfing at home on your own machine.
Interactive dangers
But in the safety of your own home, possibly surfing with an
affordable set-top box tied to your TV, or with a Cable TV Net
connection, are you free from surveillance?
Perhaps not for long - if another disturbing US report is to be
believed.
It concerns the dangers of interactive TV an increasingly popular
technology in the West. Herein India, for different reasons - the
large number of TV sets owned (about 80 million) compared to PCs
( about 5 - 6 million) - Internet through TV and the
complementary technology of interactive shopping and
entertainment services are being seen as appropriate to our
situation.
The Centre for Digital Democracy, a Washington- based advocacy
group, last month released a report which says the interactive
industry is deploying new technologies that can capture huge
amounts of personal information about TV viewers.
The Set-top box, the VCR-VCD player, the Cable TV connection can
all be used as invisible eyes: As you watch the TV screen, the TV
is watching you - so to speak -noting which channels you prefer,
which advertisements you watch, which you zap with the
remote....and it builds up a profile of you, the user.
Theoretically a cable operator, knowing from your viewing habit
that you are a vehicle owner, can send you tailored advertising,
urging you to trade or sell your car for a newer model.
If the TV is used to see a lot of children's programmes, the
local supermarket might be interested in sending you streaming
text at the bottom of your screen, touting new sweets, fast
foods, school accessories....
The fascinating 31 page report can be downloaded freely from
www.democratic media.org/privacy report.pdf.
Much of it may not apply to India today - but it will be useful
as an amber signal of the dangers that lurk ahead as we grope for
the best, most affordable, means to e-nable ourselves and our
loved ones.
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