|
"'WiFi' Lets Computer Users Stay Plugged In Without the Plug"
Donna Gallagher's sitting in the sunroom with
her laptop computer, clicking away on the eBay auction site. She drifts
into the bedroom, still clicking and bidding. Whoops -- now it's the
bathroom -- but that Prada bag isn't going to get away from her.
That's the scene as Gallagher, administrative
assistant to a roofing contractor, paints it. Her wireless connection
to the Internet has made her something of an online auction addict,
sometimes spending three or more hours at night in her Wilmington, N.C.,
home bidding on fashion and beauty items she'd otherwise have to drive a
hundred miles to buy.
"You just don't know," said Gallagher of her
addiction to wireless eBay. "It's dangerous." In the next breath she
confesses she wants a "super-duper laptop" that will make bidding in bed
even easier.
About 2,800 miles away, Linda Shukla is at
the Bay Street Hair Salon in Fremont, Calif., waiting for her hair to
perm. She used to sit there staring off into space. Now she plops her
computer onto her smock-covered lap and logs onto the Web.
"I was just bored," said Shukla, a mother of
two and a part-time program coordinator at the Dublin Theater in Dublin,
Calif. While the other customers browse out-of-season fashion
magazines, Shukla e-mails her family in India and colleagues, or listens
to her favorite British classical music station over the Web.
In the same way that cordless phones and cell
phones freed their users from the jack in the wall, WiFi (short for
"wireless fidelity") makes it easier to fashion the Internet to one's
lifestyle, rather than the other way around. It means surfing for
recipes in the kitchen, or e-mailing the boss from the baby's nursery.
And at the office, it means sharing files with co-workers, or being able
to carry a PowerPoint presentation from conference room to conference
room without having to reboot.
Going wireless means being able to use the
Internet in more rooms of the house, and, therefore, in more aspects of
one's life.
It beats hiring a contractor to puncture the
walls to string cables and install outlets in every room of the house,
to the tune of thousands of dollars. It's also superior to running long
wires from the jack under the desk in the study to the dining room table
-- only to trip and sever the connection in the mad dash to save a
burning cake.
For Bob Fleck, the real advantage of the
wireless connection is that he no longer has to stand in those long
lines at business conferences where people are waiting to use the
handful of computers available at the Internet kiosk.
"Now the trend is to set up a WiFi network so
that everyone in the conference can use it all at once," said Fleck, an
Ashburn resident who goes to technical-industry meetings several times a
year.
Broadening the Appeal
Until now, most WiFi users have been the
Internet cognoscenti, an elite group of technologically savvy people who
like to tinker with gadgets and love to access the Internet at
lightning-fast speeds.
That's changing as more people flip open
their laptops and get Web-connected -- for example, in the American
Airlines Admiral's Club on Concourse D at Dulles International Airport.
Some airports themselves offer a constant
signal, including San Jose International, Dallas Fort Worth and Norfolk
International. Web-addicted frequent travelers know that many hotels --
including the Four Seasons in Georgetown, and some chains such as
Holiday Inn and Marriott -- have wireless connections. American
University plans to convert its entire campus telecommunications network
to WiFi in time for the fall semester.
Even Starbucks is beaming WiFi connections in
530 of its stores, with plans to go wireless in 70 percent of its 3,200
North American shops -- a service it plans to start advertising in
August.
The marriage of cafe and WiFi was a powerful
one for Martha Donovan-Ammerman, who lives in Oakland, Calif., but
spends a lot of her time in the Brewed Awakenings coffee shop in
Berkeley.
"I used to be very anti-technology,"
Donovan-Ammerman said. "I thought it took jobs away from people like my
mother, who lost her job at a candy factory because of machines," she
said. But Brewed Awakenings's WiFi setup -- which she now uses -- has
been the conversation starter that introduced her to at least 15
Internet aficionados, and those relationships have transformed her.
"I think it's the key to the world," she said.
The appeal of the technology for many is that
it's cheap and easy to use. WiFi requires a small device -- called an
access point -- mounted on a wall or a ceiling. Access points cost $125
to $500, and can convert any kind of high-speed service -- cable modem,
digital subscriber line (DSL) or T-1 line -- into a wireless connection.
Like garage-door systems, cordless phones and baby monitors, the
airwaves they use aren't regulated by the government, and don't
interfere with radio or television transmissions.
Receiving that signal requires a credit
card-sized client card, which costs $80 to $100. The technology goes by
several different brand names, including Apple AirPort, or by its
technical name, 802.11b. Some of the newest laptops come with the card
in place; most others require the additional purchase of the card, which
slides into the side of the computer and can detect a signal from an
access point up to 900 feet away.
"For people who have these $1,000 laptops
now, it's like they have a Porsche and they're looking for an autobahn
to run it on," said Rick Ehrlinspiel, an early convert to WiFi who
installed it in his San Francisco-area home.
"Instead of reaching over for the phone book,
you reach out and pull up the laptop," and that's true for maps and
shopping catalogues too, he said. His initial love affair with WiFi has
led to something more: Now the Internet entrepreneur is funneling funds
from his first business, the political venture Runforoffice.com, to a
new enterprise installing WiFi networks in cafes, hotels, bars and
health clubs around the country.
Between 7.5 million and 8 million U.S. users
have bought the equipment necessary to hook up to those wireless
networks, and companies, municipal governments and individuals are
embracing the new technology.
"Over the course of 2000 and 2001, WiFi has
grown a lot . . . more so than any other wireless technology," said
Gemma Paulo, an analyst for In-stat/MDR, a market-research firm. Last
year, in the midst of the technology recession, WiFi hardware sales grew
at about 14 percent a quarter, she said.
Fights on the Home Front
Some people view WiFi as a kind of grass-roots political movement.
Don Bailey's philosophy is that Internet
access should be fast, cheap, democratic and convenient. But in his
town-house development near Sterling, none of that was true. After
losing battles -- with Verizon Communications Inc. for a DSL line and
Adelphia Communications Corp. for high-speed cable -- he decided to take
his neighborhood's broadband matters into his own hands.
In March, he custom-ordered a $499-a-month
super-high-speed connection -- a T-1 line -- with enough capacity to
service a large office building. ("I was going to get a race car this
year, but instead I got a high-speed connection," he said.)
Now, Bailey's like the enterprising kid with
the lemonade stand on the corner, except that what he's offering is a
new wireless Internet service beaming from his house for $50 a month, so
far to five of his neighbors. Word of mouth has brought four or five
more neighbors to Bailey's virtual door seeking to get in on the fun. He
even offers free access -- about 30 minutes of Web-surfing time -- to
anyone able to pick up his wireless signal within 100 yards of his
house.
|
By installing these
devices in their own homes and sharing high-speed connections with other
users, residents living in or near technology centers such as San
Francisco, New York and Washington are increasingly able to circumvent
their cable and phone companies to get Internet access not only for
themselves but also for their entire community.
Last year, Bruce Potter started Nova
Wireless, with about 170 members who share a vision of an Internet
network made up of communities using WiFi and opening up their networks
to the public.
"My initial goal was free Internet access and
open networks," said Potter, who runs two WiFi networks -- one inside
his house, and one from his roof for the benefit of his neighbors. "It
turns out people have trouble getting any kind of broadband," so this
became a way to share a limited resource, he said.
One of the limiting factors of WiFi is the
short distance the signal travels. Cellular companies -- which are
developing a competing technology of their own -- now hope to profit
from the growth in WiFi by developing a system that will allow customers
to migrate from WiFi networks to their cellular networks without having
to reconnect.
In some places, like Manhattan, WiFi has so
proliferated that it's almost impossible to find an area that isn't
within reach of someone's network, said Ed Skoudis, a vice president
with Predictive Systems Inc., a network-management firm in New York. "I
took a $20 cab ride around Manhattan and found 455 access points in an
hour," Skoudis said.
That kind of availability makes virtual
neighborhoods easy to create. People living in apartment buildings are
setting up networks that are easy to share with neighbors living on the
other side of a wall, much to the chagrin of Internet service providers
concerned that multiple users are piggybacking on a single paid
subscription, Skoudis said.
'Sniffing' for Security
At least a couple of times a week, Chris
O'Ferrell dons his sunglasses, gets into his red Corvette (license plate
CYBRWAR), turns up some head-banging rock a' la Ted Nugent, and
reacquaints himself with a darker and more dangerous side of WiFi.
He hacks.
O'Ferrell, who specializes in breaking into
bank networks, starts by going to www.netstumbler.com, a Web site that
offers him the tools necessary to "sniff" the air for open WiFi
networks. With his laptop on the passenger's seat, attached to a small
antenna on the dashboard, he starts doing what's known underground as a
"war drive," this time along Washington's K Street NW.
Ping, ping, ping.
The computer starts giving off sounds like a
slot machine, bleeping more than 100 times as it detects the presence of
WiFi access points along a few blocks in the heart of Washington's law
firm district.
"DC Office" is the name of several WiFi
networks that pop up on his screen. Others are labeled simply
"wireless," or "tsunami," the generic name some access points call
themselves when they're installed straight out of the box and no one has
programmed them to make them secure. All of those networks are wide
open, which means it takes less than two minutes for O'Ferrell to
configure his client card to pick up the signal, then gain entry into DC
Office's or Tsunami's internal system.
Ping, ping. The Senate office buildings, the
Supreme Court and even the Pentagon. Even if they're encrypted, it would
take an hour, "at the most," to hack in, he said.
His passenger changes the music. "I've never hacked to jazz before," he said.
As chief technology officer of Netsec Inc., a
Herndon network-security firm, O'Ferrell actually puts his war drives
to good use. His mission is to figure out a way that hackers won't be
able to, for example, funnel $10 million out of your business's bank
account -- which he was able to do to a major Wall Street bank once (it
was a security project; he returned the money).
Of the WiFi users out there, "about 75
percent don't ever use encryption," O'Ferrell said. "That's really
scary."
Security experts say it's easy to hack into
almost any kind of network that runs on these wireless networks, both
because the users are lax about security and because the systems
themselves lack sophisticated protections to keep eavesdroppers out of
the loop.
If an executive is using his laptop in his
corner office and is linked to the company's WiFi connection, for
example, a hacker sitting outside the building can burrow into the same
signal to penetrate the system and look at the very same information.
It's even possible for a benign user to sit
on a bench across from the Apple Computer store in the new shopping
complex in Clarendon and surf the Web by riding the open signal from
Apple's WiFi product display.
It's increasingly in vogue for criminally
inclined teenagers to perpetrate a kind of cyber-vandalism, stealing
Social Security numbers and credit card numbers, O'Ferrell said. They
often turn around and exchange the information for computer games, he
added.
The only really secure way to use the
wireless network is to hook up to the Internet using a private network,
said Dennis Eaton, chairman of the Wireless Ethernet Compatibility
Alliance, an industry group based in San Jose. The problem is that most
users don't bother to take the extra steps necessary to do that, he
said.
Some businesses and government organizations
are suspending their WiFi plans because of security concerns, said Chuck
Riegel, chief operating officer of Ecutel Inc., an Alexandria-based
firm making software that promises to make the systems more secure.
Until better technology is available, WiFi won't take off on a grand
scale in the business world, he said.
That hasn't been a deal breaker for the Henrico County, Va., school system.
Two kids tried to hack into their school's
grading system, but that didn't dissuade the county from installing WiFi
in its schools and providing each of its 11,500 high school students
with a laptop last fall.
"Now I lecture from the back of the
classroom," said Carole Givens, who spent most of her 34 teaching years
at the front of the classroom, trying to get her U.S. history and
government students to focus on a blackboard.
Ever since Varina High School installed WiFi
connections in Givens's classroom, her students have been able to get
assignments, diagrams, work sheets and activities through the Internet
connection. Now class is interactive, and the laptops allow Givens to
move around the room and give her students more personal attention.
Computer instruction the old way never
worked, she said. "We have four computer labs, but of course that was
never enough," because the students always wanted to use the labs at the
same time. "Now, my classroom is always a lab."
Annandale resident Catherine Rotolo calls
Apple AirPort her "magic bubble," a discreet little device she hides
behind her entertainment system.
Two of those magic bubbles have transformed
her home and her office into a seamless workplace. She can take care of
business anywhere in the building where she works, which spans an entire
city block. "If I wanted to, I could sit in the bathtub if I wasn't
worried about getting electrocuted," she said.
Moreover, it's changed her idiosyncratic habits.
"I find myself waking up at midnight thinking
about mistakes I might have made, or things I might have forgotten --
it's terrible," Rotolo said.
"I used to keep a notebook at my bedside, but now I just e-mail myself."
|