Everipedia Logo
Everipedia is now IQ.wiki - Join the IQ Brainlist and our Discord for early access to editing on the new platform and to participate in the beta testing.


Cybercrime, or computer-oriented crime, is a crime that involves a computer and a network.[1] The computer may have been used in the commission of a crime, or it may be the target.[2] Cybercrimes can be defined as: "Offences that are committed against individuals or groups of individuals with a criminal motive to intentionally harm the reputation of the victim or cause physical or mental harm, or loss, to the victim directly or indirectly, using modern telecommunication networks such as Internet (networks including chat rooms, emails, notice boards and groups) and mobile phones (Bluetooth/SMS/MMS)".[3] Cybercrime may threaten a person or a nation's security and financial health.[4] Issues surrounding these types of crimes have become high-profile, particularly those surrounding hacking, copyright infringement, unwarranted mass-surveillance, sextortion, child pornography, and child grooming.[3]

There are also problems of privacy when confidential information is intercepted or disclosed, lawfully or otherwise. Debarati Halder and K. Jaishankar further define cybercrime from the perspective of gender and defined 'cybercrime against women' as "Crimes targeted against women with a motive to intentionally harm the victim psychologically and physically, using modern telecommunication networks such as internet and mobile phones".[3] Internationally, both governmental and non-state actors engage in cybercrimes, including espionage, financial theft, and other cross-border crimes. Cybercrimes crossing international borders and involving the actions of at least one nation-state is sometimes referred to as cyberwarfare.

A report (sponsored by McAfee), published in 2014, estimated that the annual damage to the global economy was $445 billion.[5] Approximately $1.5 billion was lost in 2012 to online credit and debit card fraud in the US.[6] In 2018, a study by Center for Strategic and International Studies (CSIS), in partnership with McAfee, concludes that close to $600 billion, nearly one percent of global GDP, is lost to cybercrime each year.[7]


Computer crime encompasses a broad range of activities.[8]

Financial fraud crimes

Computer fraud is any dishonest misrepresentation of fact intended to let another to do or refrain from doing something which causes loss. In this context, the fraud will result in obtaining a benefit by:

  • Altering in an unauthorized way.

  • This requires little technical expertise and is a common form of theft by employees altering the data before entry or entering false data, or by entering unauthorized instructions or using unauthorized processes;

  • Altering, destroying, suppressing, or stealing output, usually to conceal unauthorized transactions.

  • This is difficult to detect;

  • Altering or deleting stored data;

Other forms of fraud may be facilitated using computer systems, including bank fraud, carding, identity theft, extortion, and theft of classified information. These types of crime often result in the loss of private information or monetary information.


Government officials and information technology security specialists have documented a significant increase in Internet problems and server scans since early 2001. There us a growing concern among government agencies such as the Federal Bureau of Investigations (FBI) and the Central Intelligence Agency (CIA) that such intrusions are part of an organized effort by cyberterrorists, foreign intelligence services, or other groups to map potential security holes in critical systems.[9] A cyberterrorist is someone who intimidates or coerces a government or an organization to advance his or her political or social objectives by launching a computer-based attack against computers, networks, or the information stored on them.

Cyberterrorism, in general, can be defined as an act of terrorism committed through the use of cyberspace or computer resources (Parker 1983). As such, a simple propaganda piece on the Internet that there will be bomb attacks during the holidays can be considered cyberterrorism. There are also hacking activities directed towards individuals, families, organized by groups within networks, tending to cause fear among people, demonstrate power, collecting information relevant for ruining peoples' lives, robberies, blackmailing, etc.[10]


Cyberextortion occurs when a website, e-mail server, or computer system is subjected to or threatened with repeated denial of service or other attacks by malicious hackers.

These hackers demand money in return for promising to stop the attacks and to offer "protection".

According to the Federal Bureau of Investigation, cybercrime extortionists are increasingly attacking corporate websites and networks, crippling their ability to operate and demanding payments to restore their service. More than 20 cases are reported each month to the FBI and many go unreported in order to keep the victim's name out of the public domain. Perpetrators typically use a distributed denial-of-service attack.[11] However, other cyberextortion techniques exist such as doxing extortion and bug poaching.

An example of cyberextortion was the attack on Sony Pictures of 2014.[12]


The U.S. Department of Defense (DoD) notes that the cyberspace has emerged as a national-level concern through several recent events of geostrategic significance. Among those are included, the attack on Estonia's infrastructure in 2007, allegedly by Russian hackers. "In August 2008, Russia again allegedly conducted cyber attacks, this time in a coordinated and synchronized kinetic and non-kinetic campaign against the country of Georgia. The December 2015 Ukraine power grid cyberattack has also been attributed to Russia and is considered the first successful cyber attack on a power grid. Fearing that such attacks may become the norm in future warfare among nation-states, the concept of cyberspace operations impacts and will be adapted by warfighting military commanders in the future.[13]

Computer as a target

These crimes are committed by a selected group of criminals.

Unlike crimes using the computer as a tool, these crimes require the technical knowledge of the perpetrators.

As such, as technology evolves, so too does the nature of the crime.

These crimes are relatively new, having been in existence for only as long as computers have—which explains how unprepared society and the world, in general, is towards combating these crimes.

There are numerous crimes of this nature committed daily on the internet.

Crimes that primarily target computer networks or devices include:

  • Computer viruses

  • Denial-of-service attacks

  • Malware (malicious code)

Computer as a tool

When the individual is the main target of cybercrime, the computer can be considered as the tool rather than the target.

These crimes generally involve less technical expertise.

Human weaknesses are generally exploited.

The damage dealt is largely psychological and intangible, making legal action against the variants more difficult. These are the crimes which have existed for centuries in the offline world. Scams, theft, and the likes have existed even before the development in high-tech equipment. The same criminal has simply been given a tool which increases their potential pool of victims and makes them all the harder to trace and apprehend.[14]

Crimes that use computer networks or devices to advance other ends include:

  • Fraud and identity theft (although this increasingly uses malware, hacking or phishing, making it an example of both "computer as target" and "computer as tool" crime)

  • Information warfare

  • Phishing scams

  • Spam

  • Propagation of illegal obscene or offensive content, including harassment and threats

The unsolicited sending of bulk email for commercial purposes (spam) is unlawful in some jurisdictions.

Phishing is mostly propagated via email. Phishing emails may contain links to other websites that are affected by malware.[15] Or, they may contain links to fake online banking or other websites used to steal private account information.

Obscene or offensive content

The content of websites and other electronic communications may be distasteful, obscene or offensive for a variety of reasons. In some instances, these communications may be illegal.

The extent to which these communications are unlawful varies greatly between countries, and even within nations.

It is a sensitive area in which the courts can become involved in arbitrating between groups with strong beliefs.

One area of Internet pornography that has been the target of the strongest efforts at curtailment is child pornography, which is illegal in most jurisdictions in the world.

Online harassment

Whereas content may be offensive in a non-specific way, harassment directs obscenities and derogatory comments at specific individuals focusing for example on gender, race, religion, nationality, sexual orientation. This often occurs in chat rooms, through newsgroups, and by sending hate e-mail to interested parties. Harassment on the internet also includes revenge porn.

There are instances where committing a crime using a computer can lead to an enhanced sentence.

For example, in the case of United States v. Neil Scott Kramer, Kramer was served an enhanced sentence according to the U.S. Sentencing Guidelines Manual §2G1.3(b)(3)[16] for his use of a cell phone to "persuade, induce, entice, coerce, or facilitate the travel of, the minor to engage in prohibited sexual conduct." Kramer argued that this claim was insufficient because his charge included persuading through a computer device and his cellular phone technically is not a computer. Although Kramer tried to argue this point, U.S. Sentencing Guidelines Manual states that the term computer "means an electronic, magnetic, optical, electrochemically, or other high-speed data processing device performing logical, arithmetic, or storage functions, and includes any data storage facility or communications facility directly related to or operating in conjunction with such device."[17]

Connecticut was the U.S. state to pass a statute making it a criminal offense to harass someone by computer. Michigan, Arizona, and Virginia and South Carolina[18] have also passed laws banning harassment by electronic means.[19][20]

Harassment as defined in the U.S. computer statutes is typically distinct from cyberbullying, in that the former usually relates to a person's "use a computer or computer network to communicate obscene, vulgar, profane, lewd, lascivious, or indecent language, or make any suggestion or proposal of an obscene nature, or threaten any illegal or immoral act," while the latter need not involve anything of a sexual nature.

Although freedom of speech is protected by law in most democratic societies (in the US this is done by the First Amendment), it does not include all types of speech. In fact spoken or written "true threat" speech/text is criminalized because of "intent to harm or intimidate", that also applies for online or any type of network related threats in written text or speech.[21] The US Supreme Court definition of "true threat" is "statements where the speaker means to communicate a serious expression of an intent to commit an act of unlawful violence to a particular individual or group".[21]

Drug trafficking

Darknet markets are used to buy and sell recreational drugs online. Some drug traffickers use encrypted messaging tools to communicate with drug mules. The dark web site Silk Road was a major online marketplace for drugs before it was shut down by law enforcement (then reopened under new management, and then shut down by law enforcement again). After Silk Road 2.0 went down, Silk Road 3 Reloaded emerged. However, it was just an older marketplace named Diabolus Market, that used the name for more exposure from the brand's previous success.[22]

Documented cases

  • One of the highest profiled banking computer crime occurred during a course of three years beginning in 1970.

  • The chief teller at the Park Avenue branch of New York's Union Dime Savings Bank embezzled over $1.5 million from hundreds of accounts.[23]

  • A hacking group called MOD (Masters of Deception), allegedly stole passwords and technical data from Pacific Bell, Nynex, and other telephone companies as well as several big credit agencies and two major universities. The damage caused was extensive, one company, Southwestern Bell suffered losses of $370,000 alone.[23]

  • In 1983, a 19-year-old UCLA student used his PC to break into a Defense Department International Communications system.[23]

  • Between 1995 and 1998 the Newscorp satellite pay to view encrypted SKY-TV service was hacked several times during an ongoing technological arms race between a pan-European hacking group and Newscorp. The original motivation of the hackers was to watch Star Trek reruns in Germany; which was something which Newscorp did not have the copyright to allow.[24]

  • On 26 March 1999, the Melissa worm infected a document on a victim's computer, then automatically sent that document and a copy of the virus spread via e-mail to other people.

  • In February 2000, an individual going by the alias of MafiaBoy began a series denial-of-service attacks against high-profile websites, including Yahoo!, Dell, Inc., E*TRADE, eBay, and CNN. About 50 computers at Stanford University, and also computers at the University of California at Santa Barbara, were amongst the zombie computers sending pings in DDoS attacks. On 3 August 2000, Canadian federal prosecutors charged MafiaBoy with 54 counts of illegal access to computers, plus a total of ten counts of mischief to data for his attacks.

  • The Stuxnet worm corrupted SCADA microprocessors, particularly of the types used in Siemens centrifuge controllers.

  • The Flame (malware) that mainly targeted Iranian officials in an attempt to obtain sensitive information.[25]

  • The Russian Business Network (RBN) was registered as an internet site in 2006. Initially, much of its activity was legitimate. But apparently, the founders soon discovered that it was more profitable to host illegitimate activities and started hiring its services to criminals. The RBN has been described by VeriSign as "the baddest of the bad".[26] It offers web hosting services and internet access to all kinds of criminal and objectionable activities, with individual activities earning up to $150 million in one year. It specialized in and in some cases monopolized personal identity theft for resale. It is the originator of MPack and an alleged operator of the now defunct Storm botnet.

  • On 2 March 2010, Spanish investigators arrested 3 in infection of over 13 million computers around the world.

  • The "botnet" of infected computers included PCs inside more than half of the Fortune 1000 companies and more than 40 major banks, according to investigators.

  • In August 2010 the international investigation Operation Delego, operating under the aegis of the Department of Homeland Security, shut down the international pedophile ring Dreamboard. The website had approximately 600 members and may have distributed up to 123 terabytes of child pornography (roughly equivalent to 16,000 DVDs). To date this is the single largest U.S. prosecution of an international child pornography ring; 52 arrests were made worldwide.[27]

  • In January 2012 Zappos.com experienced a security breach after as many as 24 million customers' credit card numbers, personal information, billing and shipping addresses had been compromised.[28]

  • In June 2012 LinkedIn and eHarmony were attacked, compromising 65 million password hashes. 30,000 passwords were cracked and 1.5 million EHarmony passwords were posted online.[29]

  • December 2012 Wells Fargo website experienced a denial of service attack. Potentially compromising 70 million customers and 8.5 million active viewers. Other banks thought to be compromised: Bank of America, J. P. Morgan U.S. Bank, and PNC Financial Services.[30]

  • 23 April 2013 saw the Associated Press' Twitter account's hacked - the hacker posted a hoax tweet about fictitious attacks in the White House that they claimed left President Obama injured.[31] This hoax tweet resulted in a brief plunge of 130 points from the Dow Jones Industrial Average, removal of $136 billion from S&P 500 index,[32] and the temporary suspension of AP's Twitter account. The Dow Jones later restored its session gains.

  • In May 2017, 74 countries logged a ransomware cybercrime, called "WannaCry"[33]

  • Illicit access to camera sensors, microphone sensors, phonebook contacts, all internet-enabled apps, and metadata of mobile telephones running Android and IOS were reportedly made accessible by Israeli spyware, found to be being in operation in at least 46 nation-states around the world.

  • Journalists, Royalty and government officials were amongst the targets.[34][35][36] Previous accusations of cases of Israeli-weapons companies meddling in international telephony[37] and smartphones[38] have been eclipsed in the 2018 reported case.

Combating computer crime

Diffusion of cybercrime

The broad diffusion of cybercriminal activities is an issue in computer crimes detection and prosecution.

According to Jean-Loup Richet (Associate Professor at the Sorbonne Business School), technical expertise and accessibility no longer act as barriers to entry into cybercrime.[39] Indeed, hacking is much less complex than it was a few years ago, as hacking communities have greatly diffused their knowledge through the Internet.

Blogs and communities have hugely contributed to information sharing: beginners could benefit from older hackers' knowledge and advice.

Furthermore, hacking is cheaper than ever: before the cloud computing era, in order to spam or scam one needed a dedicated server, skills in server management, network configuration, and maintenance, knowledge of Internet service provider standards, etc. By comparison, a mail software-as-a-service is a scalable, inexpensive, bulk, and transactional e-mail-sending service for marketing purposes and could be easily set up for spam.[40] Jean-Loup Richet explains that cloud computing could be helpful for a cybercriminal as a way to leverage his attack – brute-forcing a password, improve the reach of a botnet, or facilitating a spamming campaign.[41]


A computer can be a source of evidence (see digital forensics). Even where a computer is not directly used for criminal purposes, it may contain records of value to criminal investigators in the form of a logfile. In most countries[42] Internet Service Providers are required, by law, to keep their logfiles for a predetermined amount of time. For example; a European wide Data Retention Directive (applicable to all EU member states) states that all e-mail traffic should be retained for a minimum of 12 months.

There are many ways for cybercrime to take place, and investigations tend to start with an IP Address trace, however, that is not necessarily a factual basis upon which detectives can solve a case. Different types of high-tech crime may also include elements of low-tech crime, and vice versa, making cybercrime investigators an indispensable part of modern law enforcement. Methods of cybercrime detective work are dynamic and constantly improving, whether in closed police units or in international cooperation framework.[43]


Due to easily exploitable laws, cybercriminals use developing countries in order to evade detection and prosecution from law enforcement.

In developing countries, such as the Philippines, laws against cybercrime are weak or sometimes nonexistent. These weak laws allow cybercriminals to strike from international borders and remain undetected. Even when identified, these criminals avoid being punished or extradited to a country, such as the United States, that has developed laws that allow for prosecution. While this proves difficult in some cases, agencies, such as the FBI, have used deception and subterfuge to catch criminals. For example, two Russian hackers had been evading the FBI for some time. The FBI set up a fake computing company based in Seattle, Washington. They proceeded to lure the two Russian men into the United States by offering them work with this company. Upon completion of the interview, the suspects were arrested outside of the building. Clever tricks like this are sometimes a necessary part of catching cybercriminals when weak legislation makes it impossible otherwise.[44]

Then-President Barack Obama released in an executive order in April 2015 to combat cybercrime. The executive order allows the United States to freeze assets of convicted cybercriminals and block their economic activity within the United States. This is some of the first solid legislation that combats cybercrime in this way.[45]

The European Union adopted directive 2013/40/EU.

All offences of the directive, and other definitions and procedural institutions are also in the Council of Europe's Convention on Cybercrime.[46].

It is not only the USA and the European Union who are introducing new measures against cybercrime.

ON 31 May 2017 China announced that its new cybersecurity law takes effect on this date.[47]


Penalties for computer-related crimes in New York State can range from a fine and a short period of jail time for a Class A misdemeanor such as unauthorized use of a computer up to computer tampering in the first degree which is a Class C felony and can carry 3 to 15 years in prison.[48]

However, some hackers have been hired as information security experts by private companies due to their inside knowledge of computer crime, a phenomenon which theoretically could create perverse incentives. A possible counter to this is for courts to ban convicted hackers from using the Internet or computers, even after they have been released from prison – though as computers and the Internet become more and more central to everyday life, this type of punishment may be viewed as more and more harsh and draconian. However, nuanced approaches have been developed that manage cyber offenders' behavior without resorting to total computer or Internet bans.[49] These approaches involve restricting individuals to specific devices which are subject to computer monitoring or computer searches by probation or parole officers.[50]


As technology advances and more people rely on the internet to store sensitive information such as banking or credit card information, criminals increasingly attempt to steal that information.

Cybercrime is becoming more of a threat to people across the world.

Raising awareness about how information is being protected and the tactics criminals use to steal that information continues to grow in importance.

According to the FBI's Internet Crime Complaint Center in 2014, there were 269,422 complaints filed.

With all the claims combined there was a reported total loss of $800,492,073.[51] But cybercrime does yet seem to be on the average person's radar.

There are 1.5 million cyber-attacks annually, that means that there are over 4,000 attacks a day, 170 attacks every hour, or nearly three attacks every minute, with studies showing us that only 16% of victims had asked the people who were carrying out the attacks to stop.[52] Anybody who uses the internet for any reason can be a victim, which is why it is important to be aware of how one is being protected while online.


As cybercrime has proliferated, a professional ecosystem has evolved to support individuals and groups seeking to profit from cybercriminal activities.

The ecosystem has become quite specialized, including malware developers, botnet operators, professional cybercrime groups, groups specializing in the sale of stolen content, and so forth.

A few of the leading cybersecurity companies have the skills, resources and visibility to follow the activities of these individuals and group.[53] A wide variety of information is available from these sources which can be used for defensive purposes, including technical indicators such as hashes of infected files[54] or malicious IPs/URLs,[54] as well as strategic information profiling the goals, techniques and campaigns of the profiled groups. Some of it is freely published, but consistent, on-going access typically requires subscribing to an adversary intelligence subscription service. At the level of an individual threat actor, threat intelligence is often referred to that actor's "TTP", or "tactics, techniques, and procedures," as the infrastructure, tools, and other technical indicators are often trivial for attackers to change. Corporate sectors are considering crucial role of artificial intelligence cybersecurity.[55][56]


  • ASEAN[57]

  • Australian High Tech Crime Centre

  • Cyber Crime Investigation Cell, a wing of Mumbai Police, India

  • Cyber Crime Unit (Hellenic Police), formed in Greece in 1995

  • National White Collar Crime Center, in the United States

  • National Cyber Crime Unit, in the United Kingdom

See also

  • Computer Fraud and Abuse Act

  • Computer security

  • Computer trespass

  • Cloud computing security

  • Convention on Cybercrime

  • Cyber defamation law

  • Cyber-

  • Cyberheist

  • Darknet

  • Dark web

  • Deep web

  • Domain hijacking

  • (Illegal) drop catching

  • Economic and industrial espionage

  • FBI

  • Immigration and Customs Enforcement (ICE)

  • Internet homicide

  • Internet suicide pact

  • Legal aspects of computing

  • List of computer criminals

  • Metasploit Project

  • National Crime Agency (NCA)

  • Penetration test

  • Police National E-Crime Unit

  • Protected computer

  • Techno-thriller

  • Trespass to chattels

  • United States Secret Service

  • White-collar crime

  • Web shell


Citation Linkopenlibrary.orgMoore, R. (2005) "Cyber crime: Investigating High-Technology Computer Crime," Cleveland, Mississippi: Anderson Publishing.
Sep 30, 2019, 3:19 AM
Citation Linkopenlibrary.orgWarren G. Kruse, Jay G. Heiser (2002). Computer forensics: incident response essentials. Addison-Wesley. p. 392. ISBN 978-0-201-70719-9.
Sep 30, 2019, 3:19 AM
Citation Linkwww.igi-global.com
  • Halder, D., & Jaishankar, K. (2011) Cyber crime and the Victimization of Women: Laws, Rights, and Regulations. Hershey, PA, USA: IGI Global. ISBN 978-1-60960-830-9
Sep 30, 2019, 3:19 AM
Citation Linkwww.forbes.comSteve Morgan (17 January 2016). "Cyber Crime Costs Projected To Reach $2 Trillion by 2019". Forbes. Retrieved 22 September 2016.
Sep 30, 2019, 3:19 AM
Citation Linkwww.reuters.com"Cyber crime costs global economy $445 billion a year: report". Reuters. 9 June 2014. Retrieved 17 June 2014.
Sep 30, 2019, 3:19 AM
Citation Linknorthdenvernews.com"#Cybercrime— what are the costs to victims - North Denver News". North Denver News. 17 January 2015. Retrieved 16 May 2015.
Sep 30, 2019, 3:19 AM
Citation Linkwww.mcafee.comLewis, James (February 2018). "Economic Impact of Cybercrime - No Slowing Down" (PDF). Cite journal requires |journal= (help)
Sep 30, 2019, 3:19 AM
Citation Linkpdfs.semanticscholar.orgGordon, Sarah (25 July 2006). "On the definition and classification of cybercrime" (PDF). Retrieved 14 January 2018.
Sep 30, 2019, 3:19 AM
Citation Linkbooks.google.comLaqueur, Walter; C., Smith; Spector, Michael (2002). Cyberterrorism. Facts on File. pp. 52–53. ISBN 9781438110196.
Sep 30, 2019, 3:19 AM
Citation Linksentinelone.com"Cybercriminals Need Shopping Money in 2017, Too! - SentinelOne". sentinelone.com. 28 December 2016. Retrieved 24 March 2017.
Sep 30, 2019, 3:19 AM
Citation Linkwww.ere-security.caLepofsky, Ron. "Cyberextortion by Denial-of-Service Attack" (PDF). Archived from the original (PDF) on 6 July 2011.
Sep 30, 2019, 3:19 AM
Citation Linkwww.cyphort.comMohanta, Abhijit (6 December 2014). "Latest Sony Pictures Breach : A Deadly Cyber Extortion". Retrieved 20 September 2015.
Sep 30, 2019, 3:19 AM
Citation Linkwww.carlisle.army.milDennis Murphy (February 2010). "War is War? The utility of cyberspace operations in the contemporary operational environment" (PDF). Center for Strategic Leadership. Archived from the original (PDF) on 20 March 2012.
Sep 30, 2019, 3:19 AM
Citation Linkwww.crime-research.org"Cybercrime definition". www.crime-research.org. Retrieved 3 August 2019.
Sep 30, 2019, 3:19 AM
Citation Linkgoogleonlinesecurity.blogspot.jp"Save browsing". google.
Sep 30, 2019, 3:19 AM
Citation Linkwww.ussc.gov"2011 U.S. Sentencing Guidelines Manual § 2G1.3(b)(3)". 28 October 2013.
Sep 30, 2019, 3:19 AM
Citation Linkleg1.state.va.us"United States of America v. Neil Scott Kramer". Retrieved 23 October 2013.
Sep 30, 2019, 3:19 AM
Citation Linkwww.victimsofcrime.org"South Carolina". Retrieved 16 May 2015.
Sep 30, 2019, 3:19 AM
Citation Linkwww.nerac.com"1. In Connecticut, harassment by computer is now a crime". Nerac Inc. 3 February 2003. Archived from the original on 10 April 2008.
Sep 30, 2019, 3:19 AM
Citation Linkwww.law.com"Section 18.2-152.7:1". Code of Virginia. Legislative Information System of Virginia. Retrieved 27 November 2008.
Sep 30, 2019, 3:19 AM