Click fraud is a type of Internet crime Computer crime or cybercrime refers to any crime that involves a computer and a network, where the computers may or may not have played an instrumental part in the commission of the crime . Issues surrounding this type of crime have become high-profile, particularly those surrounding hacking, copyright infringement, child porn, and child grooming^{[citation needed]} that occurs in pay per click Pay Per Click is an Internet advertising model used on websites, in which advertisers pay their host only when their ad is clicked. With search engines, advertisers typically bid on keyword phrases relevant to their target market. Content sites commonly charge a fixed price per click rather than use a bidding system online advertising Online advertising is a form of promotion that uses the Internet and World Wide Web for the expressed purpose of delivering marketing messages to attract customers. Examples of online advertising include contextual ads on search engine results pages, banner ads, Rich Media Ads, Social network advertising, interstitial ads, online classified when a person, automated script or computer program imitates a legitimate user of a web browser A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to clicking on an ad, for the purpose of generating a charge per click without having actual interest in the target of the ad's link. Click fraud is the subject of some controversy and increasing litigation due to the advertising networks being a key beneficiary of the fraud.

Use of a computer to commit this type of Internet fraud Internet fraud uses online services to present fraudulent solicitations to prospective victims, to conduct fraudulent transactions, or to transmit the proceeds of fraud to financial institutions or to others connected with the scheme. Internet fraud can occur in chat rooms, e-mail, message boards, or Web sites is a felony A felony is a serious crime in the common law countries, and the United States retains this law. The term originates from English common law where felonies were originally crimes which involved the confiscation of a convicted person's land and goods; other crimes were called misdemeanors. Many common law countries have now abolished the felony/ in many jurisdictions, for example, as covered by Penal code 502 in California California's geography ranges from the Pacific coast to the Sierra Nevada mountain range in the east, to Mojave desert areas in the southeast and the Redwood–Douglas fir forests of the northwest. The center of the state is dominated by the Central Valley, one of the most productive agricultural areas in the world. California is the most, USA ^ b. English is the de facto language of American government and the sole language spoken at home by 80% of Americans age five and older. Spanish is the second most commonly spoken language.^{[citation needed]} There have been arrests relating to click fraud with regard to malicious clicking in order to deplete a competitor's advertising budget^{[citation needed]}.

Pay per click advertising

Pay per click Pay Per Click is an Internet advertising model used on websites, in which advertisers pay their host only when their ad is clicked. With search engines, advertisers typically bid on keyword phrases relevant to their target market. Content sites commonly charge a fixed price per click rather than use a bidding system advertising or, PPC advertising, is an arrangement in which webmasters A webmaster , also called a web architect, web developer, site author, website administrator, or (informally) webmeister, sometimes heard in tongue-in-cheek feminine form web mistress, is a person responsible for maintaining a website(s). The duties of the webmaster may include ensuring that the web servers, hardware and software are operating (operators of Web sites), acting as publishers, display clickable links from advertisers in exchange for a charge per click. As this industry evolved, a number of advertising networks developed, which acted as middlemen between these two groups (publishers and advertisers). Each time a (believed to be) valid Web user clicks on an ad, the advertiser pays the advertising network, who in turn pays the publisher a share of this money. This revenue-sharing system is seen as an incentive for click fraud.

The largest of the advertising networks, Google Google Inc. is a multinational public cloud computing, Internet search, and advertising technologies corporation. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program. The company was founded by Larry Page and Sergey Brin, often dubbed the "'s AdWords AdWords is Google's flagship advertising product and main source of revenue. Google's total advertising revenues were USD$23 billion in 2009. AdWords offers pay-per-click advertising, and site-targeted advertising for both text, banner, and rich-media ads. The AdWords program includes local, national, and international distribution. Google's text/AdSense AdSense is an ad serving application run by Google Inc. Website owners can enroll in this program to enable text, image, and video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis. Google beta tested a cost-per-action service, but discontinued it in and Yahoo! Search Marketing Yahoo! Search Marketing is a keyword-based "Pay per click" or "Sponsored search" Internet advertising service provided by Yahoo!, act in a dual role, since they are also publishers themselves (on their search engines)^[1]. According to critics, this complex relationship may create a conflict of interest. For instance, Google loses money to undetected click fraud when it pays out to the publisher, but it makes more money when it collects fees from the advertiser. Because of the spread between what Google collects and what Google pays out, click fraud directly and invisibly profits Google. Some have even speculated that Google's barring users of the Google Analytics Google Analytics is a free service offered by Google that generates detailed statistics about the visitors to a website. Its main highlight is that the product is aimed at marketers as opposed to webmasters and technologists from which the industry of web analytics originally grew. It is the most widely used website statistics service, currently system from tracing IP addresses of visitors is directly related to click fraud on the Google AdWords network and a desire to keep the true extent of click fraud from being disclosed.^{[citation needed]}

Non-contracting parties

A secondary source of click fraud is non-contracting parties, who are not part of any pay-per-click agreement. This type of fraud is even harder to police, because perpetrators generally cannot be sued for breach of contract or charged criminally with fraud. Examples of non-contracting parties are:

• Competitors of advertisers: These parties may wish to harm a competitor who advertises in the same market by clicking on their ads. The perpetrators do not profit directly but force the advertiser to pay for irrelevant clicks, thus weakening or eliminating a source of competition.
• Competitors of publishers: These persons may wish to frame a publisher. It is made to look as if the publisher is clicking on its own ads. The advertising network may then terminate the relationship. Many publishers rely exclusively on revenue from advertising and could be put out of business by such an attack.
• Other malicious intent: As with vandalism Vandalism is the behaviour attributed originally to the Vandals, by the Romans, in respect of culture: ruthless destruction or spoiling of anything beautiful or venerable. Such action includes defacement, graffiti and criminal damage, there is an array of motives for wishing to cause harm to either an advertiser or a publisher, even by people who have nothing to gain financially. Motives include political and personal vendettas. These cases are often the hardest to deal with, since it is difficult to track down the culprit, and if found, there is little legal action that can be taken against them.
• Friends of the publisher: Sometimes upon learning a publisher profits from ads being clicked, a supporter of the publisher (like a fan, family member, or personal friend) will click on the ads to help. This can be considered patronage. However, this can backfire when the publisher (not the friend) is accused of click fraud.

Advertising networks may try to stop fraud by all parties but often do not know which clicks are legitimate. Unlike fraud committed by the publisher, it is difficult to know who should pay when past click fraud is found. Publishers resent having to pay refunds for something that is not their fault. However, advertisers are adamant that they should not have to pay for phony clicks.

Organization

Click fraud can be as simple as one person starting a small Web site, becoming a publisher of ads, and clicking on those ads to generate revenue. Often the number of clicks and their value is so small that the fraud goes undetected. Publishers may claim that small amounts of such clicking is an accident, which is often the case.

Much larger-scale fraud also occurs^[2]. Those engaged in large-scale fraud will often run scripts A scripting language, script language or extension language is a programming language that allows control of one or more software applications. "Scripts" are distinct from the core code of the application, which is usually written in a different language, and are often created or at least modified by the end-user. Scripts are often which simulate a human clicking on ads in Web pages. However, huge numbers of clicks appearing to come from just one, or a small number of computers, or a single geographic area, look highly suspicious to the advertising network and advertisers. Clicks coming from a computer known to be that of a publisher also look suspicious to those watching for click fraud. A person attempting large-scale fraud, alone in their home, stands a good chance of being caught.

One type of fraud that circumvents detection based on IP patterns uses existing user traffic, turning this into clicks or impressions ^[2] Such an attack can be camouflaged from users by using 0-size iframes An HTML element is an individual component of an HTML document. HTML documents are composed of a tree of HTML elements and other nodes, such as text nodes. Each element can have attributes specified. Elements can also have content, including other elements and text. HTML elements represent semantics, or meaning. For example, the title element to display advertisements that are programmatically retrieved using JavaScript JavaScript is an implementation of the ECMAScript language standard and is typically used to enable programmatic access to computational objects within a host environment. It can be characterized as a prototype-based object-oriented scripting language that is dynamic, weakly typed and has first-class functions. It is also considered a functional. It could also be camouflaged from advertisers and portals by ensuring that so-called "reverse spiders A Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner or in an orderly fashion. Other terms for Web crawlers are ants, automatic indexers, bots, or Web spiders, Web robots, or—especially in the FOAF community—Web scutters" are presented with a legitimate page, while human visitors are presented with a page that commits click fraud. The use of 0-size iframes and other techniques involving human visitors may also be combined with the use of incentivized traffic, where members of "Paid to Read" sites are paid small amounts of money (often a fraction of a cent) to visit a website and/or click on keywords and search results, sometimes hundreds or thousands of times every day ^[3] Some owners of PTR sites are members of PPC engines and may send many email ads to users who do search, while sending little ads to those who do not. They do this mainly because the charge per click on search results is often the only source of revenue to the site. This is known as forced searching, a practice that is frowned upon in the Get Paid To industry.

Organized crime Organized crime or criminal organizations is a transnational grouping of highly centralized enterprises run by criminals for the purpose of engaging in illegal activity, most commonly for the purpose of generating a monetary profit. The Organized Crime Control Act defines organized crime as "The unlawful activities of [...] a highly organized, can handle this by having many computers with their own Internet connections in different geographic locations. Often, scripts fail to mimic true human behavior, so organized crime networks use Trojan A Trojan, sometimes referred to as a Trojan horse, is non-self-replicating malware that appears to perform a desirable function for the user but instead facilitates unauthorized access to the user's computer system. The term is derived from the Trojan Horse story in Greek mythology code to turn the average person's machines into zombie computers A zombie computer is a computer connected to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse. Generally, a compromised machine is only one of many in a botnet, and will be used to perform malicious tasks of one sort or another under remote direction. Most owners of zombie computers are unaware that their and use sporadic redirects URL redirection, also called URL forwarding and the very similar technique domain redirection also called domain forwarding, are techniques on the World Wide Web for making a web page available under many URLs or DNS cache poisoning DNS cache poisoning is a maliciously created or unintended situation that provides data to a caching name server that did not originate from authoritative Domain Name System sources. This can happen through improper software design, misconfiguration of name servers, and maliciously designed scenarios exploiting the traditionally open-architecture to turn the oblivious user's actions into actions generating revenue for the scammer. It can be difficult for advertisers, advertising networks, and authorities to pursue cases against networks of people spread around multiple countries.

Impression fraud is when falsely generated ad impressions affect an advertiser's account. In the case of click-through rate Click-through rate or CTR is a way of measuring the success of an online advertising campaign. A CTR is obtained by dividing the "number of users who clicked on an ad" on a web page by the "number of times the ad was delivered" . For example, if a banner ad was delivered 100 times (impressions delivered) and one person clicked based auction models, the advertiser may be penalized for having an unacceptably low click-through for a given keyword An index term, subject term, subject heading, or descriptor, in information retrieval, is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records. They are an integral part of bibliographic control, which is the function by which libraries collect, organize and. This involves making numerous searches for a keyword without clicking of the ad. Such ads are disabled automatically, enabling a competitor's lower-bid ad for the same keyword to continue, while several high bidders (on the first page of the search results) have been eliminated.

Legal cases

Class action lawsuits

• Disputes over the issue have resulted in a number of lawsuits A lawsuit, or "suit in law", is a civil action brought before a court of law in which a plaintiff, a party who claims to have received damages from a defendant's actions, seeks a legal or equitable remedy. The defendant is required to respond to the plaintiff's complaint. If the plaintiff isn't successful, judgment will be given in the. In one case, Google (acting as both an advertiser and advertising network) won a lawsuit against a Texas company called Auction Experts (acting as a publisher), which Google accused of paying people to click on ads that appeared on Auction Experts' site, costing advertisers $50,000. ^[4] Despite networks' efforts to stop it, publishers are suspicious of the motives of the advertising networks, because the advertising network receives money for each click, even if it is fraudulent.

• In July 2005, Yahoo settled a class-action lawsuit against it by plaintiffs alleging it did not do enough to prevent click fraud. Yahoo paid $4.5 million in legal bills for the plaintiffs and agreed to settle advertiser claims dating back to 2004 ^[5] In July 2006, Google settled a similar suit for $90 million ^[6][7].

• On March 8, 2006, Google agreed to a $90 million-settlement fund in the class-action lawsuit filed by Lane's Gifts & Collectibles. ^[8] The class-action lawsuit was filed in Miller County, Arkansas, by Dallas attorneys Steve Malouf, Joel Fineberg, and Dean Gresham. ^[9]

Michael Anthony Bradley

In 2004, California resident Michael Anthony Bradley created Google Clique, a software program that he claimed could let spammers defraud Google Google Inc. is a multinational public cloud computing, Internet search, and advertising technologies corporation. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program. The company was founded by Larry Page and Sergey Brin, often dubbed the " out of millions of dollars in fraudulent clicks. Authorities said he was arrested while trying to blackmail Blackmail is the crime of threatening to reveal substantially true information about a person to the public, a family member, or associates unless a demand made upon the victim is met. This information is usually of an embarrassing, socially damaging, and/or incriminating nature. As the information is substantially true, the act of revealing the Google for $150,000 to hand over the program, believed to be the first arrest for click fraud.^[10]

Charges were dropped without explanation on November 22, 2006; both the US Attorney's office and Google declined to comment. Business Week It was first published in 1929 [clarification needed] under the direction of Malcolm Muir, who was serving as president of the McGraw-Hill Publishing company at the time. Prior to 1929, it was titled System, published out of Chicago by Arch W. Shaw, the first publisher of Harvard Business Review.), when the A.W. Shaw Co. was purchased by McGraw- suggests that Google was unwilling to cooperate with the prosecution, as it would be forced to disclose its click fraud detection techniques publicly, as it also makes money from fraudulent clicks.^[11]

Solutions

Proving click fraud can be very difficult, since it is hard to know who is behind a computer and what their intentions are. Often the best an advertising network can do is to identify which clicks are most likely fraudulent and not charge the account of the advertiser. Even more sophisticated means of detection are used^[12], but none is foolproof.

The Tuzhilin Report^[13] produced as part of a click fraud lawsuit settlement, has a detailed and comprehensive discussion of these issues. In particular, it defines "the Fundamental Problem of invalid (fraudulent) clicks":

• "There is no conceptual definition of invalid clicks that can be operationalized [except for certain obviously clear cases]."

• "An operational definition cannot be fully disclosed to the general public because of the concerns that unethical users will take advantage of it, which may lead to a massive click fraud. However, if it is not disclosed, advertisers cannot verify or even dispute why they have been charged for certain clicks."

The pay-per-click industry is lobbying for tighter laws on the issue. Many hope to have laws that will cover those not bound by contracts.

A number of companies are developing viable solutions for click fraud identification and are developing intermediary relationships with advertising networks. Such solutions fall into two categories:

1. Forensic analysis of advertisers' web server log files. This analysis of the advertiser's web server data requires an in-depth look at the source and behavior of the traffic. As industry standard log files are used for the analysis, the data is verifiable by advertising networks. The problem with this approach is that it relies on the honesty of the middlemen in identifying fraud.
2. Third-party corroboration. Third parties offer web-based solutions that might involve placement of single-pixel images or Javascript on the advertiser's web pages and suitable tagging of the ads. The visitor may be presented with a cookie. Visitor information is then collected in a third-party data store and made available for download. The better offerings make it easy to highlight suspicious clicks, and they show the reasons for such a conclusion. Since an advertiser's log files can be tampered with, their accompaniment with corroborating data from a third party forms a more convincing body of evidence to present to the advertising network. However, the problem with third-party solutions is that such solutions see only part of the traffic of the entire network. Hence, they can be less likely to identify patterns that span several advertisers. In addition, due to the limited amount of traffic they receive when compared to middlemen, they can be overly or less aggressive when judging traffic to be fraud.

Click fraud in academia

The fact that the middlemen (search engines) have the upper hand in the operational definition of invalid clicks is the reason for the conflict of interest between advertisers and the middlemen, as described above. This is manifested in The Tuzhilin Report ^[13] as described above. The Tuzhilin report did not publicly define invalid clicks and did not describe the operational definitions in detail. Rather, it gave a high-level picture of the fraud-detection system and argued that the operational definition of the search engine under investigations is "reasonable". One aim of the report was to preserve the privacy of the fraud-detection system in order to maintain its effectiveness. This prompted some researchers to conduct public research on how the middlemen can fight click fraud. Since such research is presumably not tainted by market forces, there is hope that this research can be adopted to assess how rigorous a middleman is in detecting click fraud in future law cases. The fear that this research can expose the internal fraud-detection system of middlemen still applies. An example of such research is that done by Metwally, Agrawal and El Abbadi at UCSB The University of California, Santa Barbara, commonly known as UCSB or UC Santa Barbara, is a public research university and one of the 10 general campuses of the University of California system. The main campus is located on a 1,022-acre site in Santa Barbara, California, 100 miles (160 km) northwest of Los Angeles. Founded as an independent. Recent work by Majumdar, Kulkarni, and Ravishankar at UC Riverside The University of California, Riverside, commonly known as UCR or UC Riverside, is a public research university and one of the ten general campuses of the University of California system. The main campus sits on 1,200 acres in a suburban district of Riverside, California, United States, with a branch campus of 20 acres (8 ha) in Palm Desert proposes protocols for the identification of fraudulent behavior by brokers and other intermediaries in content-delivery networks.

See also

• Clickbot.A Clickbot.A is a piece of malware, an internet bot that is used for click fraud
• Click farm
• Hit inflation attack Hit Inflation Attack is a kind of fraudulent skill used by some advertisement publishers' to earn unjustified revenue on the traffic they drive to the advertisers’ Web sites. It is more sophisticated and hard to detect than simple Inflation Attack

References

1. ^ Asdemir, Kursad; Yurtseven, Özden; Yahya, Moin. An Economic Model of Click Fraud in Publisher Networks. 2008.
2. ^ ^{a b} Schonfeld, Erick; The Evolution Of Click Fraud: Massive Chinese Operation DormRing1 Uncovered". TechCrunch TechCrunch is a web publication that offers technology news and analysis, as well as profiling of startup companies, products and websites. It was founded by Michael Arrington in 2005, and was first published on June 11, 2005. October 8, 2009.
3. ^ Grow, Bryan; Elgin, Ben; with Herbst, Moira;"Click Fraud: The dark side of online advertising". BusinessWeek It was first published in 1929 [clarification needed] under the direction of Malcolm Muir, who was serving as president of the McGraw-Hill Publishing company at the time. Prior to 1929, it was titled System, published out of Chicago by Arch W. Shaw, the first publisher of Harvard Business Review.), when the A.W. Shaw Co. was purchased by McGraw-, October 2, 2006
4. ^ Davis, Wendy; "Google Wins $75,000 in Click Fraud Case". Media Post July 5, 2005.
5. ^ Ryan, Kevin M.; "Big Yahoo Click Fraud Settlement. iMedia Connection July 5, 2006
6. ^ Wong, Nicole; "Update Lanes Gifts v. Google". Google Blog, March 8, 2006
7. ^ Griffin, Joe E;"Lanes v. Google Final Order". Google Blog, July 27, 2006
8. ^ Sullivan, Danny Daniel John "Danny" Sullivan III is a former racing driver from the United States. He is best known for winning the 1985 Indianapolis 500;"Google Agrees To $90 Million Settlement In Class Action Lawsuit Over Click Fraud". March 8, 2006
9. ^ Hartzer, Bill; "Lost Clicks". Search Engine Guide, May 27, 2005
10. ^ US Department of Justice The United States Department of Justice , is the United States federal executive department responsible for the enforcement of the law and administration of justice, equivalent to the justice or interior ministries of other countries; "Computer Programmer Arrested for Extortion and Mail Fraud Scheme Targeting Google, Inc.". March 18, 2004
11. ^ Elgin, Ben; "The Vanishing Click Fraud Case". Business Week It was first published in 1929 [clarification needed] under the direction of Malcolm Muir, who was serving as president of the McGraw-Hill Publishing company at the time. Prior to 1929, it was titled System, published out of Chicago by Arch W. Shaw, the first publisher of Harvard Business Review.), when the A.W. Shaw Co. was purchased by McGraw-. December 4, 2006
12. ^ Ghosemajumder, Shuman Shuman Ghosemajumder is a Canadian technologist, businessman, and author based in Silicon Valley. He is a member of the product management team at Google, the author of works on digital distribution including the Open Music Model, and co-author of the book CGI Programming Unleashed (Macmillan Publishing, 1997, ISBN 1-57521-151-3); "Using data to help prevent fraud". March 18, 2008
13. ^ ^{a b} Tuzhilin, Alexander; The Lane's Gifts v. Google Report, by Alexander Tuzhilin. July, 2006

External links

• Metwally, Ahmed; Agrawal, Divyakant; El Abbadi, Amr (2007). "DETECTIVES: DETEcting Coalition hiT Inflation attacks in adVertising nEtworks Streams". Proceedings of the International WWW conference. IW3C2. pp. 241–250. http://www2007.org/papers/paper070.pdf.
• Metwally, Ahmed; Agrawal, Divyakant; El Abbadi, Amr (2005). "Duplicate Detection in Click Streams". Proceedings of the International WWW conference. IW3C2. pp. 12–21. http://www2005.org/cdrom/docs/p12.pdf.
• Majumdar, Saugat; Kulkarni, Dhananjay; Ravishankar, Chinya (2007). "Addressing Click Fraud in Content Delivery Systems". Infocom. IEEE. http://www.cs.ucr.edu/~smajumdar/infocom07.pdf.
• "Truth in advertising", The Economist The Economist is an English-language weekly news and international affairs publication owned by The Economist Newspaper Ltd. and edited in offices in the City of Westminster, London. Continuous publication began under founder James Wilson in September 1843. While The Economist calls itself a "newspaper", each issue appears on glossy, November 23, 2006.
• "Vendors release click-fraud detection tools", eWeek Categories: American business magazines | American computer magazines | Weekly magazines | . Retrieved March 4, 2005.
• "Click fraud roils search advertisers", CNet CNET.com is the online portal for CNET Networks, providing access to CNET's reviews, news, downloads, price comparisons and CNET TV as well as web search powered by search.com. CNET.com is divided into seven major sections, all of which can be accessed from the home or "Today on CNET" page. These sections are:. Retrieved March 4, 2005.
• "Mice Attack: Internet scammers steal money with 'click fraud'", Newsweek Newsweek is an American weekly news magazine published in New York City. It is distributed throughout the United States and internationally. It is the second largest news weekly magazine in the U.S., having trailed Time in circulation and advertising revenue for most of its existence. Newsweek is published in four English language editions and 12. Retrieved January 18, 2005.
• "Google CFO: Fraud a Big Threat", CNN Cable News Network, almost always referred to by its initialism CNN, is a U.S. cable news channel founded in 1980 by Ted Turner. Upon its launch, CNN was the first channel to provide 24-hour television news coverage, and the first all-news television channel in the United States. While the news channel has numerous affiliates, CNN primarily Money. Retrieved December 2, 2004.
• "How Click Fraud Could Swallow the Internet", Wired Magazine Wired is a full-color monthly American magazine and on-line periodical, published since March 1993, that reports on how technology affects culture, the economy, and politics. Owned by Condé Nast Publications, it is published in San Francisco, California, issue 14.01 (January 2006). Retrieved December 29, 2005.
• "Click fraud fears growing for online advertisers", The Times The Times and its sister paper The Sunday Times are published by Times Newspapers Limited, a subsidiary of News International. News International is entirely owned by the News Corporation group, headed by Rupert Murdoch. Though traditionally a moderately centre-right newspaper and a supporter of the Conservatives, it supported the Labour Party in. Retrieved February 2006.
• "New Attacks and Defenses In Click-Fraud War", Datamation Datamation was a computer magazine published in the United States between 1957 and 1998. When first published it wasn't clear there would be a significant market for a computer magazine given how few computers there were. Retrieved September 2004.
• Simone Soubusta: "On Click Fraud", Information - Wissenschaft und Praxis. Retrieved March 2008.

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