(Spam Twitter)-Spam is the use 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, television advertising 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. In the year 2011, the estimated figure for spam messages is around seven trillion. 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 has been the subject of legislation in many jurisdictions.
People who create electronic spam are called spammers.
History
Pre-Internet
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. 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.
Etymology
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". 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 children of the 1960s for low-grade fodder due to its commonality, monotonous taste and cheap price - hence the humour of the Python sketch.
E-mail
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 composes some 80 to 85% of all the email in the world, by a "conservative estimate". 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.
Instant Messaging
Instant Messaging spam makes use of instant messaging systems. Although less ubiquitous than its e-mail counterpart, according to a report from Ferris Research, 500 million spam 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. This is very common on many instant messaging system such as Skype.
Newsgroup and forum
Newsgroup spam is a type of spam where the targets are Usenet newsgroups. Spamming of Usenet newsgroups actually pre-dates e-mail spam. Usenet convention defines spamming as excessive multiple posting, that is, the repeated posting of a message (or substantially similar messages). The prevalence of Usenet spam led to the development of the Breidbart Index as an objective measure of a message's "spamminess.
Mobile phone
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.
Forum spam
Forum spam is the creating of messages that are advertisements or otherwise unwanted on Internet forums. It is generally done by automated spambots. Most forum spam consists of links to external sites, with the dual goals of increasing search engine visibility in highly competitive areas such as weight loss, pharmaceuticals, gambling, pornography, real estate or loans, and generating more traffic for these commercial websites. Some of these links contain code to track the spambot's identity if a sale goes through, when the spammer behind the spambot works on commission.
Blog, wiki, and guestbook
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. Similar attacks are often performed against wikis and guestbooks, both of which accept user contributions.
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 (SEO) techniques" to deliberately manipulate their rank in search engines. Many modern search engines modified their search algorithms to try to exclude web pages utilizing spamdexing tactics. For example, the search bots will detect repeated keywords as spamming by using a grammar analysis. If a website owner is found to have spammed the webpage to falsely increase its page rank, the website may be penalized by search engines.
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 such links. 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.
Noncommercial forms
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, and in some cases have used it to lure people to locations where they have been kidnapped, held for ransom, and even murdered.
Trademark issues
Hormel Foods Corporation, the maker of Spam luncheon meat, does not object to the Internet use of the term "spamming". However, they did ask that the capitalized word "Spam" be reserved to refer to their product and trademark. By and large, this request is obeyed in forums which discuss spam. In Hormel Foods v SpamArrest, Hormel attempted to assert its trademark rights against SpamArrest, a software company, from using the mark "spam", since Hormel owns the trademark. In a dilution claim, Hormel argued that Spam Arrest's use of the term "spam" had endangered and damaged "substantial goodwill and good reputation" in connection with its trademarked lunch meat and related products. Hormel also asserts that Spam Arrest's name so closely resembles its luncheon meat that the public might become confused, or might think that Hormel endorses Spam Arrest's products.
Cost Benefit Analyses
The European Union's Internal Market Commission estimated in 2001 that "junk e-mail" cost Internet users €10 billion per year worldwide. The California legislature found that spam cost United States organizations alone more than $13 billion in 2007, including lost productivity and the additional equipment, software, and manpower needed to combat the problem. Spam's direct effects include the consumption of computer and network resources, and the cost in human time and attention of dismissing unwanted messages.
In addition, spam has costs stemming from the kinds of spam messages sent, from the ways spammers send them, and from the arms race between spammers and those who try to stop or control spam. In addition, there are the opportunity cost of those who forgo the use of spam-afflicted systems. There are the direct costs, as well as the indirect costs borne by the victims—both those related to the spamming itself, and to other crimes that usually accompany it, such as financial theft, identity theft, data and intellectual property theft, virus and other malware infection, child pornography, fraud, and deceptive marketing.
General costs
In all cases listed above, including both commercial and non-commercial, "spam happens" because of a positive Cost-benefit analysis result if the cost to recipients is excluded as an externality the spammer can avoid paying.
Cost is the combination of
Overhead: The costs and overhead of electronic spamming include bandwidth, developing or acquiring an email/wiki/blog spam tool, taking over or acquiring a host/zombie, etc.
Transaction cost: The incremental cost of contacting each additional recipient once a method of spamming is constructed, multiplied by the number of recipients. (see CAPTCHA as a method of increasing transaction costs)
Risks: Chance and severity of legal and/or public reactions, including damages and punitive damages
Damage: Impact on the community and/or communication channels being spammed.
In crime
Spam can be used to spread computer viruses, trojan horses or other malicious software. The objective may be identity theft, or worse (e.g., advance fee fraud). Some spam attempts to capitalize on human greed whilst other attempts to use the victims' inexperience with computer technology to trick them (e.g., phishing). On May 31, 2007, one of the world's most prolific spammers, Robert Alan Soloway, was arrested by U.S. authorities.Described as one of the top ten spammers in the world, Soloway was charged with 35 criminal counts, including mail fraud, wire fraud, e-mail fraud, aggravated identity theft and money laundering. Prosecutors allege that Soloway used millions of "zombie" computers to distribute spam during 2003. This is the first case in which U.S. prosecutors used identity theft laws to prosecute a spammer for taking over someone else's Internet domain name.
Political issues
Spamming remains a hot discussion topic. In 2004, the seized Porsche of an indicted spammer was advertised on the Internet; this revealed the extent of the financial rewards available to those who are willing to commit duplicitous acts online. However, some of the possible means used to stop spamming may lead to other side effects, such as increased government control over the Internet, loss of privacy, barriers to free expression, and the commercialization of e-mail.
One of the chief values favored by many long-time Internet users and experts, as well as by many members of the public, is the free exchange of ideas. Many have valued the relative anarchy of the Internet, and bridle at the idea of restrictions placed upon it. A common refrain from spam-fighters is that spamming itself abridges the historical freedom of the Internet, by attempting to force users to carry the costs of material which they would not choose.
