Spam (electronic)

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File:Spammed-mail-folder.png
An email box folder littered with spam messages

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Spam is the abuse of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately. While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, online classified ads spam, mobile phone messaging spam, Internet forum spam, junk fax transmissions, social networking spam, and file sharing network spam.

Spamming remains economically viable because advertisers have no operating costs beyond the management of their mailing lists, and it is difficult to hold senders accountable for their mass mailings. Because the barrier to entry is so low, spammers are numerous, and the volume of unsolicited mail has become very high. The costs, such as lost productivity and fraud, are borne by the public and by Internet service providers, which have been forced to add extra capacity to cope with the deluge. Spamming is universally reviled, and has been the subject of legislation in many jurisdictions.[1]

People who create electronic spam are called spammers.[2]

[edit] Spamming in different media

[edit] E-mail spam

E-mail spam, known as unsolicited bulk Email (UBE), junk mail, or unsolicited commercial email (UCE), is the practice of sending unwanted e-mail messages, frequently with commercial content, in large quantities to an indiscriminate set of recipients.

Spam in e-mail started to become a problem when the Internet was opened up to the general public in the mid-1990s. It grew exponentially over the following years, and today comprises some 80 to 85% of all the email in the world, by a "conservative estimate".[3]

Pressure to make e-mail spam illegal has been successful in some jurisdictions, but less so in others. Spammers take advantage of this fact, and frequently outsource parts of their operations to countries where spamming will not get them into legal trouble.

Increasingly, e-mail spam today is sent via "zombie networks", networks of virus- or worm-infected personal computers in homes and offices around the globe; many modern worms install a backdoor which allows the spammer access to the computer and use it for malicious purposes. This complicates attempts to control the spread of spam, as in many cases the spam doesn't even originate from the spammer. In November 2008 an ISP, McColo, which was providing service to botnet operators, was depeered and spam dropped 50%-75% Internet-wide. At the same time, it is becoming clear that malware authors, spammers, and phishers are learning from each other, and possibly forming various kinds of partnerships.[citation needed]

An industry of e-mail address harvesting is dedicated to collecting email addresses and selling compiled databases.[4] Some of these address harvesting approaches rely on users not reading the fine print of agreements, resulting in them agreeing to send messages indiscriminately to their contacts. This is a common approach in social networking spam such as that generated by the social networking site Quechup.[5]

[edit] Instant Messaging Spam

Instant Messaging spam, known also as spim (a portmanteau of spam and IM, short for instant messaging), makes use of instant messaging systems. Although less ubiquitous than its e-mail counterpart, spim is reaching more users all the time. According to a report from Ferris Research, 500 million spim IMs were sent in 2003, twice the level of 2002. As instant messaging tends to not be blocked by firewalls it is an especially useful channel for spammers.

One way to protect yourself against spammers is to only allow messages from people on your friends lists. Many email services now offer spam filtering (Junk Mail) and some instant messaging providers offer hints and tips on avoiding email spam and spim (BT Yahoo for example).

[edit] Newsgroup spam and forum spam

[edit] Mobile phone spam

Mobile phone spam is directed at the text messaging service of a mobile phone. This can be especially irritating to customers not only for the inconvenience but also because of the fee they may be charged per text message received in some markets. The term "SpaSMS" was coined at the adnews website Adland in 2000 to describe spam SMS.

[edit] Online game messaging spam

Many online games allow players to contact each other via player-to-player messaging, chat rooms, or public discussion areas. What qualifies as spam varies from game to game, but usually this term applies to all forms of message flooding, violating the terms of service contract for the website. This is particularly common in MMORPGs such as World of Warcraft and others where the spammers are trying to sell game related items for real world money, chiefly among these items is in-game currency. This kind of spamming is also called Real Money Trading (RMT).

In World of Warcraft it is common for spammers to advertise sites that sell gold in multiple methods of spam. They send spam via the ingame private messaging system, via the ingame mailing system, via yelling publicly to everyone in the area and by creating a lot of characters and committing suicide (with hacks) and making a row of bodies resemble a site URL. The URL takes the user to a gold selling website.

[edit] Spam targeting search engines (spamdexing)

Spamdexing (a portmanteau of spamming and indexing) refers to a practice on the World Wide Web of modifying HTML pages to increase the chances of them being placed high on search engine relevancy lists. These sites use "black hat search engine optimization techniques" to unfairly increase their rank in search engines. Many modern search engines modified their search algorithms to try to exclude web pages utilizing spamdexing tactics.

[edit] Blog, wiki, and guestbook spam

Blog spam, or "blam" for short, is spamming on weblogs. In 2003, this type of spam took advantage of the open nature of comments in the blogging software Movable Type by repeatedly placing comments to various blog posts that provided nothing more than a link to the spammer's commercial web site.[6] Similar attacks are often performed against wikis and guestbooks, both of which accept user contributions.

[edit] Spam targeting video sharing sites

Video sharing sites, such as YouTube, are now being frequently targeted by spammers. The most common technique involves people (or spambots) posting links to sites, most likely pornographic or dealing with online dating, on the comments section of random videos or people's profiles.

Another frequently used technique is using bots to post messages on random users' profiles to a spam account's channel page, along with enticing text and images, usually of a sexually suggestive nature. These pages may include their own or other users' videos, again often suggestive. The main purpose of these accounts is to draw people to their link in the home page section of their profile.

YouTube has blocked the posting of links but people can still manage to get their message across by replacing all instances of a period with the word "dot." For instance, typing out example dot com instead of example.com bypasses the filter set in place. In addition, YouTube has implemented a CAPTCHA system that makes rapid posting of repeated comments much more difficult than before, because of abuse in the past by mass-spammers who would flood people's profiles with thousands of repetitive comments.

Yet another kind is actual video spam, giving the uploaded movie a name and description with a popular figure or event which is likely to draw attention, or within the video has a certain image timed to come up as the video's thumbnail image to mislead the viewer. The actual content of the video ends up being totally unrelated, a Rickroll, sometimes offensive, or just features on-screen text of a link to the site being promoted.[7]

Others may upload videos presented in an infomercial-like format selling their product which feature actors and paid testimonials, though the promoted product or service is of dubious quality and would likely not pass the scrutiny of a standards and practices department at a television station or cable network.

[edit] Noncommercial spam

E-mail and other forms of spamming have been used for purposes other than advertisements. Many early Usenet spams were religious or political. Serdar Argic, for instance, spammed Usenet with historical revisionist screeds. A number of evangelists have spammed Usenet and e-mail media with preaching messages. A growing number of criminals are also using spam to perpetrate various sorts of fraud,[8] and in some cases have used it to lure people to locations where they have been kidnapped, held for ransom, and even murdered.[9]

[edit] Geographical origins of spams

A 2009 Cisco Systems report lists the origin of spam by country as follows:[10]

(trillions of spam messages per year)

  1. Brazil: 7.7;
  2. USA: 6.6;
  3. India: 3.6;
  4. South Korea: 3.1;
  5. Turkey: 2.6;
  6. Vietnam: 2.5;
  7. China: 2.4;
  8. Poland: 2.4;
  9. Russia: 2.3;
  10. Argentina: 1.5.

[edit] History

[edit] Pre-Internet spam

In the late 19th Century Western Union allowed telegraphic messages on its network to be sent to multiple destinations. The first recorded instance of a mass unsolicited commercial telegram is from May 1864.[11] Up until the Great Depression wealthy North American residents would be deluged with nebulous investment offers. This problem never fully emerged in Europe to the degree that it did in the Americas, because telegraphy was regulated by national post offices in the European region.

[edit] Origin of the term

According to the Internet Society and other sources, the term spam is derived from the 1970 SPAM sketch of the BBC television comedy series "Monty Python's Flying Circus"[12][13]

The sketch is set in a cafe where nearly every item on the menu includes SPAM canned luncheon meat. As the waiter recites the SPAM-filled menu, a chorus of Viking patrons drowns out all conversations with a song repeating "SPAM, SPAM, SPAM, SPAM... lovely SPAM! wonderful SPAM!", hence "SPAMming" the dialogue. The excessive amount of SPAM mentioned in the sketch is a reference to the preponderance of imported canned meat products in the United Kingdom - particularly corned beef from Argentina - in the years after World War II, as the country struggled to rebuild its agricultural base. SPAM captured a large slice of the British market within lower economic classes and became a byword among British schoolboys of the 1960s for low-grade fodder due to its commonality, monotonic taste and cheap price - whence the humour of the Python sketch.

In the 1980s the term was adopted to describe certain abusive users who frequented BBSs and MUDs, who would repeat "SPAM" a huge number of times to scroll other users' text off the screen.[14] In early Chat rooms services like PeopleLink and the early days of AOL, they actually flooded the screen with quotes from the Monty Python Spam sketch. With internet connections over phone lines, typically running at 1200 or even 300 BAUD, it could take an enormous amount of time for a spammy logo, drawn in ASCII art to scroll to completion on a viewer's terminal. Sending an irritating, large, meaningless block of text in this way was called spamming. This was used as a tactic by insiders of a group that wanted to drive newcomers out of the room so the usual conversation could continue. It was also used to prevent members of rival groups from chatting—for instance, Star Wars fans often invaded Star Trek chat rooms, filling the space with blocks of text until the Star Trek fans left.[15] This act, previously called flooding or trashing, came to be known as spamming.[16] The term was soon applied to a large amount of text broadcast by many users.

It later came to be used on Usenet to mean excessive multiple posting—the repeated posting of the same message. The unwanted message would appear in many if not all newsgroups, just as SPAM appeared in nearly all the menu items in the Monty Python sketch. The first usage of this sense was by Joel Furr[17] in the aftermath of the ARMM incident of March 31, 1993, in which a piece of experimental software released dozens of recursive messages onto the news.admin.policy newsgroup.[18] This use had also become established—to spam Usenet was flooding newsgroups with junk messages. The word was also attributed to the flood of "Make Money Fast" messages that clogged many newsgroups during the 1990s.[citation needed]

In 1998, the New Oxford Dictionary of English, which had previously only defined "spam" in relation to the trademarked food product, added a second definition to its entry for "spam": "Irrelevant or inappropriate messages sent on the Internet to a large number of newsgroups or users."[19]

There are three popular false etymologies of the word "spam". The first, promulgated by early spammers Laurence Canter and Martha Siegel, is that "spamming" is what happens when one dumps a can of SPAM luncheon meat into a fan blade. The second is the backronym "shit posing as mail." The third is similar, using "stupid pointless annoying messages." Another false etymology is the Esperanto interpretation: The term spamo (with the o-ending designating nouns) makes sense as "senpete alsendita mesaĝo", which means "a message sent to someone without request".

[edit] History of Internet "spam"

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