Michael Covington is FORMER chairman of the computer security team at The University of Georgia. To report an emergency to the current team, write to abuse@uga.edu.
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Note! This article was published in 1997 and is not up to date.
It was written during the lull that followed the first outburst of spam in
the mid-1990s.
In those days, "spamming" meant misuse of forums; today the term includes what
this article calls "junk mail."
Today (2004), spam has become much more common, is almost 100% fraudulent, and appears to have substantial connections to organized crime. I am very sad that legislators, and society as a whole, did not awaken to the potential extent of the problem until about 2003. A decade earlier, nobody would listen to warnings, and opportunities were lost. |
That's certainly true of the Internet. To many people, it's a personal soapbox, a refuge from law and order, or a gigantic video game. But the real Internet is none of these things. As its name implies, it's a network of networks. The Internet is not a company or organization and is not regulated by the FCC or any other government agency. It's a loose federation of computer sites that agree to link their computers together.
The Internet started in the 1960s as a Defense Department experiment, and until 1990 it was purely a network of universities and research labs. Nowadays, most people access the Internet through commercial access providers such as CompuServe and America OnLine, which were originally separate networks.
Crucially, the Internet has no headquarters; there is no central site that all messages go through. Messages take whatever path is convenient at the time. Because there's no central node, censoring the content of messages is physically impossible.
The diagram shows how a message might go from The University of Georgia to
Phoenix Computer Specialists in Arizona. The complete path involves 14
computers, 6 cities, and 3 long-distance carriers. Each site picks up
each data packet and passes it on. Successive packets in the same
session don't necessarily follow the same path.
In the early days of the net, sites transmitted information for each
other free of charge, voluntarily. Nowadays, most inter-site
communication takes place over "backbones" set up for the purpose, but
some of the costs are still hidden from the users. For example, all
email sent into The University of Georgia travels over a leased line at
the University's expense, regardless of where it came from.
That's the key to Internet ethics: you never know exactly who's paying
the bills, so you are always someone else's guest.
The fees that you pay
to America OnLine, for instance, only pay for America OnLine's
equipment, not the rest of the network. That's radically different from
the way telephone companies and post offices work. If you mail a letter
or make a phone call to England, part of the postage or telephone charge
will go to the British post office or telephone company. But the
Internet doesn't work that way. When you send email to a CompuServe
user, CompuServe pays the cost of delivering it. Other sites along the
way may also incur expenses.
Spamming started in April 1994 when two Arizona lawyers, Laurence Canter
and Martha Siegel, posted an ad on 8,000 newsgroups offering their
services to help immigrants get "green cards."
This provoked thousands
if not millions of angry complaints as every news site in the world
suddenly found 8,000 copies of Canter and Siegel's ad on its disks. The
Internet community was frustrated at not having the physical or legal
means to stop the spammers. About a year later, there was a wave of
spamming from the Albuquerque area, but it ended as the perpetrators
apparently realized that getting a million people angry at you is much
worse than being sued or jailed.
Since then, those who oppose spamming have sharpened their weapons. Many
argue that spamming and junk email are illegal under 47 USC 227, the law
that forbids junk faxes; this hasn't been confirmed in court, but if
it's not true, it ought to be.
And in a noteworthy court decision in November 1996,
America OnLine won the right to refuse to deliver unsolicited
email sent to its subscribers by a junk mailer, Cyber Promotions, Inc.
The court ruled that mass mailers don't have a constitutional right to
clog up other people's computers.
Today, service providers don't tolerate spamming; they realize that the
resulting flood of complaints will render their machines inoperative.
Some spamming still takes place, but it almost always involves fake
addresses and other petty deceptions.
If you encounter unwelcome advertising in a newsgroup, discussion forum,
or email, don't
post a reply in the same forum; that just compounds the
problem. Don't reply to the "from" address, either; it's likely to be
fake, and it may be the address of an innocent victim, or a site that
the perpetrator wants to flood with complaints. Check the newsgroup
news.admin.net-abuse.misc
to see what others know about the
incident. If the spamming appears to involve illegal activity or fraud,
contact the National Fraud Information Center
(http://www.fraud.org).
The trouble is, there still seems to be an endless supply of young
computer users who believe they'll be hailed as computer geniuses if
they break into someone else's computer -- or at least that they won't
be punished if they're under 18. These people aren't geniuses; they're
more like shoplifters. Both morally and intellectually, they have some
growing up to do, and in the meantime, they shouldn't expect to escape
responsibility for the harm they cause.
Even computer viruses are on the decline, for several reasons. Windows
95 and OS/2 are inherently somewhat less vulnerable to viruses than
DOS. Many PCs run virus checks daily. And the user community is well
aware that it's only a matter of time before a virus author is caught
and prosecuted.
Contrary to widespread rumor, viruses can't infect your PC simply by
arriving in e-mail. But some viruses do arrive as e-mail messages that
say "Look at this file" or "click on this link." If you don't know
what it is and where it came from, don't click on it.
But don't pass along virus warnings as chain letters to other e-mail
users. In ten years of looking for them, we at The University of
Georgia have never received an accurate virus warning this way. If you
get a virus warning, pass it along only to the security department of
your Internet service provider. It's very likely to be a hoax or
prank, maybe even a malicious one, and you shouldn't let it waste
thousands of other people's time.
There's no way this scheme could work; money doesn't come out of thin
air, so there's no way everybody could receive more than they send out.
That's why the law considers pyramid schemes to be theft or fraud. What
usually happens is that a few people make money at the beginning, but
thousands more, farther down the line, get nothing. These schemes are
illegal throughout the U.S. and practically everywhere else.
Why would anyone be stupid enough to advertise an illegal pyramid scheme
publicly on the Internet? Good question! One reason is that many pyramid
schemes falsely claim to have found loopholes in the law. They often
cite nonexistent laws or the laws of some other country, or they tell
you they're selling a report or mailing list.
Another reason is that people on the Internet are naive. There's a
widespread misconception that the Internet is above the law, and that if
you do something illegal on the net, the police will never see it, or
you can't be prosectued because the crime happened in "cyberspace."
That, of course, is nonsense. But some people still think the Internet
is separate from Planet Earth. You'll even see messages like, "Don't
tell my boss about my cocaine habit."
Naturally, business fraud and false advertising abound on the Internet.
The type on your screen looks the same whether or not the words are
honest, and people are easily taken in. The FDA has recently expressed
concern about medical quackery on the Internet. Hoaxes abound, too, as
does out-of-date information. Every few weeks we hear (falsely) that the
FCC is about to ban religious broadcasting, and a dying boy's appeal for
postcards has been circulating, often with false addresses, since 1989.
The University of Georgia forewarns people about these hoaxes, and many
other net ethics issues, with an online quiz at
http://www.uga.edu/compsec/quiz.
If something on the Net looks like it might be fake, it probably is.
There's no guarantee that an email message or newsgroup posting actually
came from where it says. Some software lets the sender give any name and
email address whatsoever.
To spot fakes, look at email headers. Each piece of email or newsgroup
posting arrives with a path indicating how it reached you. (To see the
path, you may have to save the message to a file and view it with an
editor.) If the message wasn't sent from the site it claims to have come
from, something is amiss. This test isn't bulletproof; it's possible to
fake part of the path, but hard to fake all of it.
Still, Internet users have to obey obscenity laws like everyone else.
Enforcement so far has been lax but would be easy to tighten up
because web pages are easily traceable to their owners. Obscenity laws
restrict what you publish or redistribute, not what you view, and they
apply only to material that meets a legal test of obscenity -- they do
not ban all sexual content or bad taste.
The Communications Decency Act of 1996 muddied the waters by trying to
prohibit "indecent" communications, not just obscene ones. This is a
much heavier restriction, and parts of the law were immediately
declared unconstitutional by a Pennsylvania district court. The
problem is that the framers of the Act seem to have thought that
service providers control the contents of the Internet. As we saw
earlier, they don't and they can't.
But decency remains a serious issue if the Internet is to be usable by
schoolchildren, and private organizations are stepping in to do what
government can't (and shouldn't): promoting voluntary standards of
decency and rating the suitability of web pages and newsgroups for
children. At least two companies, Cyber Patrol and Surfwatch,
presently do this. Teachers and parents can set up their Internet
software so that students can only access approved materials.
Other companies and organizations will soon be doing the same thing.
It's a job for private organizations, not government, because different
people have different standards of decency. A church-related elementary
school in Texas, for example, will want a different rating scheme than a
public high school in San Francisco. Rival organizations will also keep
each other honest; if one of them produces unreliable ratings, customers
will switch to another.
Concealment of costs, of course, goes back to the days when the Internet
was a subsidized research network. Now that the net is commercial, too
many things are still being paid for by the wrong people. Junk email
would disappear if the sender had to pay for the delivery of every
single copy. This isn't a technological issue; it's just a matter of
accounting. Telephone companies and post offices solved the same problem
long ago.
Authenticating of the origin of messages is harder, but several systems
are being developed. They all rely on public-key encryption --
that is, codes with two "keys" or passwords, one for encoding and the
other for decoding. The idea is that you tell people your decoding
password but keep your encoding password secret. Then, any messages that
decode successfully with your decoding password must have come from you,
because nobody else can encode messages that way.
Besides making it possible to send credit card numbers and even "digital
cash" over the net, reliable authentication will practically eliminate
problems with spamming and forgery. After all, every message will be
traceable to its origin, or at least, false addresses will be
immediately recognizable. People who want to communicate anonymously can
still do so, but it will be obvious that their addresses are being
withheld, and some people might refuse to accept such communications.
But the real future of the Internet is probably almost unforeseeable.
After all, no one predicted web pages, spamming, public-key encryption,
or even word processing; these developments, good and bad, were sudden,
unexpected inventions. There's no telling what will be invented next.
Junk mail and spamming
That, in turn, explains the current furor over junk mail and "spamming"
(massive posting of ads in irrelevant discussion forums). It's not that
people object to advertising; there have always been places on the net
where ads are welcome. The problem with junk mail and spamming is that
they impose massive expenses on unwilling victims. It's as if pesky
telephone solicitors were calling collect.
Crackers and viruses
The classic Internet crime -- breaking into computers -- is less
common than it used to be. When Robert Morris went to jail for it in
1988, people noticed, and "cyberpunks" quietly abandoned this
destructive sport. Most states now have laws in place specifying harsh
penalties for unauthorized tampering with other people's
computers. Even without specific laws, computer tampering is
prosecutable as malicious mischief, just like tampering with any other
kind of property. What's more, it's usually easy to catch the
perpetrator.
Scams and pyramids
The most common Internet crimes, in fact, are frauds and con games. One
of these is the so-called Make Money Fast pyramid scheme: send $5 to
the first person on the list, take that person's name off, add yours at
the bottom, and email it to 100 of your friends. Thousands of dollars
will supposedly pour into your mailbox.
Forgery on the net
Forgery is presently a serious problem. In September 1996, an ad for child
pornography appeared in thousands of newsgroups. It gave the name and
address of a man in New York who turned out to be an innocent victim --
somebody else was trying to frame him, or at least flood his computer
with angry email. That same month, students at the University of Georgia
received, by email, official-looking threats of disciplinary action that
turned out to be fake.
Dirty pictures?
What about pornography? In my experience it's a small problem that has
gotten big publicity. Because the Internet is a totally open
communication system, it will inevitably contain some pornography
along with everything else. It's not like a school library; it's more
like a city street. Pornography does not normally intrude into other
communications; you have to go looking for it. Although there have
been occasional cases of obscene spam, I view them as basically part
of the spam problem.
The future
The two biggest problems with the Internet today are that the costs are
too well concealed (which leads to the spam problem) and there is no
proof that messages actually came from where they say (which makes
financial transactions impossible). I predict that these problems will
be solved within a few years, and we'll see a very different
Internet.
nor are they endorsed by,
the University of Georgia or the University System of Georgia.