Counterfeit in the context of Traveller's cheque

Authentication (from Greek: αὐθεντικός authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of proving an assertion, such as the identity of a computer system user. In contrast with identification, the act of indicating a person or thing's identity, authentication is the process of verifying that identity.

Authentication is relevant to multiple fields. In art, antiques, and anthropology, a common problem is verifying that a given artifact was produced by a certain person, or in a certain place (i.e. to assert that it is not counterfeit), or in a given period of history (e.g. by determining the age via carbon dating). In computer science, verifying a user's identity is often required to allow access to confidential data or systems. It might involve validating personal identity documents.

Plagiarism is the representation of another person's language, thoughts, ideas, or expressions as one's own original work. Although precise definitions vary depending on the institution, in many countries and cultures plagiarism is considered a violation of academic integrity and journalistic ethics, as well as of social norms around learning, teaching, research, fairness, respect, and responsibility. As such, a person or entity that is determined to have committed plagiarism is often subject to various punishments or sanctions, such as suspension, expulsion from school or work, fines, imprisonment, and other penalties.

Not all cultures and countries hold the same beliefs about personal ownership of language or ideas, and plagiarism is typically not in itself a crime. However, like counterfeiting, fraud can be punished in a court for prejudices caused by copyright infringement, violation of moral rights, or torts. In academia and in industry, it is a serious ethical offense. Plagiarism and copyright infringement functionally overlap, depending on the copyright law protection in force, but they are not equivalent concepts, and although many types of plagiarism may not meet the legal requirements in copyright law as adjudicated by courts, they still constitute the passing-off of another's work as one's own, and thus plagiarism.

Smuggling is the illegal transportation of objects, substances, information or people, such as out of a house or buildings, into a prison, or across an international border, in violation of applicable laws or other regulations. More broadly, social scientists define smuggling as the purposeful movement across a border in contravention to the relevant legal frameworks.

There are various motivations to smuggle. These include the participation in illegal trade, such as in the drug trade/drug cartel, illegal weapons trade, human trafficking, wildlife smuggling or wildlife trade, counterfeiting, game of chance, prostitution, kidnapping, heists, copyright infringement (piracy), chop shops, illegal immigration or illegal emigration, tax evasion, import restrictions, export restrictions, providing contraband to prison inmates, or the theft of the items being smuggled.

Forgery is a white-collar crime that generally consists of the false making or material alteration of a legal instrument with the specific intent to defraud. Tampering with a certain legal instrument may be forbidden by law in some jurisdictions but such an offense is not related to forgery unless the tampered legal instrument was actually used in the course of the crime to defraud another person or entity. Copies, studio replicas, and reproductions are not considered forgeries, though they may later become forgeries through knowing and willful misrepresentations.

Forging money or currency is more often called counterfeiting. But consumer goods may also be counterfeits if they are not manufactured or produced by the designated manufacturer or producer given on the label or flagged by the trademark symbol. When the object forged is a record or document it is often called a false document.

Copyright infringement (at times referred to as piracy) is the use of works protected by copyright without permission for usage where such permission is required, thereby infringing certain exclusive rights granted to the copyright holder, such as the right to reproduce, distribute, display or perform the protected work, or to produce derivative works. The copyright holder is usually the work's creator, or a publisher or other business to whom copyright has been assigned. Copyright holders routinely invoke legal and technological measures to prevent and penalise copyright infringement.

Copyright infringement disputes are usually resolved through direct negotiation, a notice and take down process, or litigation in civil court. Egregious or large-scale commercial infringement, especially when it involves counterfeiting, or the fraudulent imitation of a product or brand, is sometimes prosecuted via the criminal justice system.

A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit. These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport ticket machines, and vending machines.

The process involves examining the coins and/or notes that have been inserted into the machine, and conducts various tests to determine if the currency is counterfeit. Because the parameters are different for each coin or note, these currency acceptors must be correctly programmed for each item to be accepted.

Under the law of the United Kingdom, high treason is the crime of disloyalty to the Crown. Offences constituting high treason include plotting the murder of the sovereign; committing adultery with the sovereign's consort, with the sovereign's eldest unmarried daughter, or with the wife of the heir to the throne; levying war against the sovereign and adhering to the sovereign's enemies, giving them aid or comfort; and attempting to undermine the line of succession to the Throne. Several other crimes have historically been categorised as high treason, including counterfeiting money and being a Catholic priest.

High treason was generally distinguished from petty treason, a treason committed against a subject of the sovereign, the scope of which was limited by statute to the murder of a legal superior. Petty treason comprised the murder of a master by his servant, of a husband by his wife, or of a bishop by a clergyman. Petty treason ceased to be a distinct offence from murder in 1828, and consequently high treason is today often referred to simply as treason.

A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper.Watermarks have been used on postage stamps, currency, and other government documents to discourage counterfeiting. There are two main ways of producing watermarks in paper; the dandy roll process, and the more complex cylinder mould process.

Watermarks vary greatly in their visibility; while some are obvious on casual inspection, others require some study to pick out. Various aids have been developed, such as watermark fluid that wets the paper without damaging it. A watermark is very useful in the examination of paper because it can be used for dating documents and artworks, identifying sizes, mill trademarks and locations, and determining the quality of a sheet of paper. The word is also used for digital practices that share similarities with physical watermarks. In one case, overprint on computer-printed output may be used to identify output from an unlicensed trial version of a program. In another instance, identifying codes can be encoded as a digital watermark for a music, video, picture, or other file. Or an artist adding their identifying digital Signature, graphic, logo in their digital artworks as an identifier or anti-counterfeit measure.

Microprinting is the production of recognizable patterns or characters in a printed medium at a scale that typically requires magnification to read with the naked eye. To the unaided eye, the text may appear as a solid line. Attempts to reproduce by methods of photocopy, image scanning, or pantograph typically translate as a dotted or solid line, unless the reproduction method can identify and recreate patterns to such scale. Microprint is predominantly used as an anti-counterfeiting technique, due to its inability to be easily reproduced by widespread digital methods.

While microphotography precedes microprint, microprint was significantly influenced by Albert Boni in 1934 when he was inspired by his friend, writer and editor Manuel Komroff, who was showing his experimentations related to the enlarging of photographs. It occurred to Boni that if he could reduce rather than enlarge photographs, this technology might enable publication companies and libraries to access much greater quantities of data at a minimum cost of material and storage space. Over the following decade, Boni worked to develop microprint, a micro-opaque process in which pages were photographed using 35mm microfilm and printed on cards using offset lithography. (U.S. patent 2260551A, U.S. patent 2260552A) This process proved to produce a 6" by 9" index card that stored 100 pages of text from the normal-sized publications he was reproducing. Boni began the Readex Microprint company to produce and license this technology. He also published an article A Guide to the Literature of Photography and Related Subjects (1943), which appeared in a supplemental 18th issue of the Photo-Lab Index.

Counterfeit money is currency produced outside of the legal sanction of a state or government, usually in a deliberate attempt to imitate that currency and so as to deceive its recipient. Producing or using counterfeit money is a form of fraud or forgery, and is illegal in all jurisdictions of the world. The business of counterfeiting money is nearly as old as money itself: plated copies (known as Fourrées) have been found of Lydian coins, which are thought to be among the first Western coins. Before the introduction of paper money, the most prevalent method of counterfeiting involved mixing base metals with pure gold or silver. Another form of counterfeiting is the production of documents by legitimate printers in response to fraudulent instructions. During World War II, the Nazis forged British pounds and American dollars with the specific intent to target the British economy at the time. Today, some of the finest counterfeit banknotes are called Superdollars because of their high quality and imitation of the real US dollar. There has been significant counterfeiting of Euro banknotes and coins since the launch of the currency in 2002, but considerably less than that of the US dollar.

Some of the ill-effects that counterfeit money has on society include a reduction in the value of real money; an increase in prices (inflation) as a result of an increase in money being circulated in the economy—an unauthorized artificial increase in the money supply; a decrease in the acceptability of paper money; and losses, when traders are not reimbursed for counterfeit money detected by banks, even if it is confiscated. Traditionally, anti-counterfeiting measures involved including fine detail with raised intaglio printing on bills which allows non-experts to easily spot forgeries. On coins, milled or reeded (marked with parallel grooves) edges are used to show that none of the valuable metal has been scraped off.

In England, death by burning was a legal punishment inflicted on women found guilty of high treason, petty treason, and heresy during the Middle Ages and Early Modern period. Over a period of several centuries, female convicts were publicly burnt at the stake, sometimes alive, for a range of activities including coining and mariticide.

While men guilty of heresy were also burned at the stake, those who committed high treason were instead hanged, drawn and quartered. The English jurist William Blackstone supposed that the difference in sentencing, although "full as terrible to the sensation as the other", could be explained by the desire not to publicly expose a woman's body. Public executions were well-attended affairs, and contemporary reports detail the cries of women on the pyre as they were burned alive. It later became commonplace for the executioner to strangle the convict, and for the body to be burned post-mortem.

The SS-Ehrenring (German for "SS honour ring"), unofficially called Totenkopfring ("Death's Head ring" or "skull ring"), was an award of the Schutzstaffel (SS). The ring was not a state decoration but rather a personal gift bestowed by Heinrich Himmler to SS members of distinction. It became a highly sought-after award, one which could not be bought or sold, and counterfeit replicas were produced. The SS Honour Sword and SS Honour Dagger were similar awards.

Financial crime is crime committed against property, involving the unlawful conversion of the ownership of property (belonging to one person) to one's own personal use and benefit. Financial crimes may involve fraud (cheque fraud, credit card fraud, mortgage fraud, medical fraud, corporate fraud, securities fraud (including insider trading), bank fraud, insurance fraud, market manipulation, payment (point of sale) fraud, health care fraud); theft; scams or confidence tricks; tax evasion; bribery; sedition; embezzlement; identity theft; money laundering; and forgery and counterfeiting, including the production of counterfeit money and consumer goods.

Financial crimes may involve additional criminal acts, such as computer crime and elder abuse and even violent crimes including robbery, armed robbery or murder. Financial crimes may be carried out by individuals, corporations, or by organized crime groups. Victims may include individuals, corporations, governments, and entire economies.

Counterfeiting of the currency of the United States is widely attempted. According to the United States Department of Treasury, an estimated $70 million in counterfeit bills are in circulation, or approximately 1 note in counterfeits for every 10,000 in genuine currency, with an upper bound of $200 million counterfeit, or 1 counterfeit per 4,000 genuine notes.However, these numbers are based on annual seizure rates on counterfeiting, and the actual stock of counterfeit money is uncertain because some counterfeit notes successfully circulate for a few transactions.