There is no commonly agreed single definition of “cybercrime”. It refers to illegal internet-mediated activities that often take place in global electronic networks. Cybercrime is "international" or "transnational" – there are ‘no cyber-borders between countries'. International cybercrimes often challenge the effectiveness of domestic and international law, and law enforcement. Because existing laws in many countries are not tailored to deal with cybercrime, criminals increasingly conduct crimes on the Internet in order to take advantages of the less severe punishments or difficulties of being traced.

Information and communication technology (ICT) plays an important role in helping ensure interoperability and security based on global standards. General countermeasures have been adopted to combat cybercrime, such as legal measures to improve legislation and technical measures to trace crimes over the network, Internet content control, using public or private proxy and computer forensics, encryption, and plausible deniability.

Typology Cybercrime is often associated with various forms of Internet attacks, such as hacking, Trojans, malware (keyloggers), botnet, Denial-of-Service (DoS), spoofing, phishing, and vishing. Though cybercrime encompasses a broad range of illegal activities, it can be generally divided into five categories:

Intrusive Offenses

Illegal Access: “Hacking” is one of the major forms of offenses that refers to unlawful access to a computer system.

Data Espionage: Offenders can intercept communications between users (such as e-mails) by targeting communication infrastructure such as fixed lines or wireless, and any Internet service (e.g., e-mail servers, chat or VoIP communications).

Data Interference: Offenders can violate the integrity of data and interfere with them by deleting, suppressing, or altering data and restricting access to them.

Content-related offenses

Pornographic Material (Child-Pornography): Sexually related content was among the first content to be commercially distributed over the Internet.

Racism, Hate Speech, Glorification of Violence: Radical groups use mass communication systems such as the Internet to spread propaganda.

Religious Offenses: A growing number of websites present material that is in some countries covered by provisions related to religious offenses, e.g., anti-religious written statements.

Spam: Offenders send out bulk mails by unidentified source and the mail server often contains useless advertisements and pictures.

Copyright and trademark-related offenses

Common copyright offenses: cyber copyright infringement of software, music or films.

Trademark violations: A well-known aspect of global trade. Offenses include phishing and domain or name-related offenses, such as cybersquatting.

Computer-related offenses

Fraud: online auction fraud, advance fee fraud, credit card fraud, Internet banking

Forgery: manipulation of digital documents.

Identity theft: It refers to stealing private information including Social Security Numbers (SSN), passport numbers, Date of birth, addresses, phone numbers, and passwords for non-financial and financial accounts.

Combination offenses

Cyberterrorism: The main purposes of it are propaganda, information gathering, preparation of real-world attacks, publication of training material, communication, terrorist financing and attacks against critical infrastructure.

Cyberwarfare: It describes the use of ICTs in conducting warfare using the Internet.

Cyberlaundering: Conducting crime through the use of virtual currencies, online casinos etc.Understanding Cybercrime: A Guide for Developing Countries,ITU Telecommunication Development Sector,2009

Threats

Similar to conventional crime, economic benefits, power, revenge, adventure, ideology and lust are the core driving forces of cybercrime. Major threats caused by those motivations can be categorized as following:

Economic security, reputation and social trust are severely challenged by cyber fraud, counterfeiting, impersonation and concealment of identity, extortion, electronic money laundering, copyright infringement and tax evasion.

Public interest and national security is threatened by dissemination of offensive material —e.g., pornographic, defamatory or inflammatory/intrusive communication— cyber stalking/harassment, Child pornography and paedophilia, electronic vandalism/terrorism.

Privacy, domestic and even diplomatic information security are harmed by unauthorized access and misuse of ICT, denial of services, and illegal interception of communication.Wipul Jayawickrama, Cyber Crime—Threats, Trends and Challenges, Computer Security Week 2008, Info Shield, 2008

Domestic, as well as international security are threatened by cybercrime due to its transnational characteristic. No single country can handle this issue on its own. Collaboration is required to defend against cybercrime on a global scale.

International trends As more and more criminals are aware of potentially large economic gains that can be achieved with cybercrime, they tend to switch from simple adventure and vandalism to more targeted attacks, especially platforms where valuable information highly concentrates, such as computer, mobile devices and the Cloud. There are several emerging international trends of cybercrime. Platform switch: Cybercrime is switching its battle ground from Windows-system PCs to other platforms, including mobile phones, tablet computers, and VoIP. Because a significant threshold in vulnerabilities has been reached. PC vendors are building better security into their products by providing faster updates, patches and user alert to potential flaws. Besides, global mobile devices’ penetration—from smart phones to tablet PCs—accessing the Internet by 2013 will surpass 1 billion, creating more opportunities for cybercrime. The widespread banking Trojan, Zeus is already being adapted for the mobile platform. Smishing, or SMS phishing, is another method cyber criminals are using to exploit mobile devices, which users download after being deceived by a social engineering ploy, is designed to defeat the SMS-based two-factor authentication most banks use to confirm online funds transfers by customers. VoIP systems are being used to support vishing (telephone-based phishing) schemes, which are now growing in popularity. Social engineering scams: It refers to a non-technical type of intrusion, in the form of e-mails or social networking chats, that relies heavily on human interaction and often involves deceiving potential victims into downloading malware or leaking personal data. Social engineering is nevertheless highly effective for attacking well-protected computer systems with the exploitation of trust. Social networking becomes an increasingly important tool for cyber criminals to recruit money mules to assist their money laundering operations around the globe. Spammers are not only spoofing social networking messages to persuade targets to click on links in emails — they are taking advantage of users’ trust of their social networking connections to attract new victims. Highly targeted: A recent development in "hypertargeting" is malware that is meant to disrupt industrial systems — such as the Stuxnet network worm, which exploits zero-day vulnerabilities in Microsoft. The first known copy of the worm was discovered in a plant in Germany. A subsequent variant led to a widespread global outbreak. Dissemination and use of malware: malware generally takes the form of a virus, a worm, a Trojan horse, or spyware. In 2009, the majority of malware connects to host Web sites registered in the U.S.A. (51.4%), with China second (17.2%), and Spain third (15.7%). A primary means of malware dissemination is email. It is international in scope. Intellectual property theft (IP theft): It is estimated that 90% of the software, DVDs, and CDs sold in some countries are counterfeit, and that the total global trade in counterfeit goods is more than $600 billion a year. In the USA alone, IP theft costs businesses an estimated $250 billion annually, and 750,000 jobs.

International legislative responses and cooperation

International responses

G8

Group of Eight (G8) is made up of the heads of eight industrialized countries: the U.S., the United Kingdom, Russia, France, Italy, Japan, Germany, and Canada.

In 1997, G8 released a Ministers' Communiqué that includes an action plan and principles to combat cybercrime and protect data and systems from unauthorized impairment. G8 also mandates that all law enforcement personnel must be trained and equipped to address cybercrime, and designates all member countries to have a point of contact on a 24 hours a day/7 days a week basis.

United Nations

In 1990 the UN General Assembly adopted a resolution dealing with computer crime legislation. In 2000 the UN GA adopted a resolution on combating the criminal misuse of information technology. In 2002 the UN GA adopted a second resolution on the criminal misuse of information technology.

ITU

The International Telecommunication Union (ITU), as a specialized agency within the United Nations, plays a leading role in the standardization and development of telecommunications and cybersecurity issues. The ITU was the lead agency of the World Summit on the Information Society (WSIS).

In 2003, Geneva Declaration of Principles and the Geneva Plan of Action were released, which highlights the importance of measures in the fight against cybercrime.

In 2005, the Tunis Commitment and the Tunis Agenda were adopted for the Information Society.

Council of Europe

Council of Europe is an international organisation focusing on the development of human rights and democracy in its 47 European member states.

In 2001, the Budapest Convention on Cybercrime, the first international convention aimed at Internet criminal behaviors, was co-drafted by the Council of Europe with the addition of USA, Canada, and Japan and signed by its 46 member states. But only 25 countries ratified later. It aims at providing the basis of an effective legal framework for fighting cybercrime, through harmonization of cybercriminal offenses qualification, provision for laws empowering law enforcement and enabling international cooperation.

Regional responses

APEC

Asia-Pacific Economic Cooperation (APEC) is an international forum that seeks to promote open trade and practical economic cooperation in the Asia-Pacific Region. In 2002, APEC issued Cybersecurity Strategy which is included in the Shanghai Declaration. The strategy outlined six areas for co-operation among member economies including legal developments, information sharing and co-operation, security and technical guidelines, public awareness, and training and education.

OECD

The Organisation for Economic Co-operation and Development (OECD) is an international economic organisation of 34 countries founded in 1961 to stimulate economic progress and world trade.

In 1990, the Information, Computer and Communications Policy (ICCP) Committee created an Expert Group to develop a set of guidelines for information security, which was drafted by 1992 and then adopted by the OECD Council. In 2002, OECD announced the completion of "Guidelines for the Security of Information Systems and Networks: Towards a Culture of Security".

European Union

In 2001, the European Commission published a communication titled "Creating a Safer Information Society by Improving the Security of Information Infrastructures and Combating Computer-related Crime".

In 2002, EU presented a proposal for a “Framework Decision on Attacks against Information Systems”. The Framework Decision takes note of Convention on Cybercrime, but concentrates on the harmonisation of substantive criminal law provisions that are designed to protect infrastructure elements.

Commonwealth