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In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization.
In economics and related disciplines, a transaction cost is a cost in making any economic trade when participating in a market. The idea that transactions form the basis of economic thinking was introduced by the institutional economist John R. Commons in 1931, and Oliver E. Williamson's Transaction Cost Economics article, published in 2008, popularized the concept of transaction costs. Douglass C. North argues that institutions, understood as the set of rules in a society, are key in the determination of transaction costs. In this sense, institutions that facilitate low transaction costs, boost economic growth.
The twist is a dance that was inspired by rock and roll music. From 1959 to the early sixties it became a worldwide dance craze, enjoying immense popularity while drawing controversies from critics who felt it was too provocative. It inspired dances such as the Jerk, the Pony, the Watusi, the Mashed Potato, the Monkey, and the Funky Chicken, but none were as popular.
The Health Insurance Portability and Accountability Act of 1996 is a United States Act of Congress enacted by the 104th United States Congress and signed into law by President Bill Clinton on August 21, 1996. It aimed to alter the transfer of healthcare information, stipulated the guidelines by which personally identifiable information maintained by the healthcare and healthcare insurance industries should be protected from fraud and theft, and addressed some limitations on healthcare insurance coverage. It generally prohibits healthcare providers and businesses called covered entities from disclosing protected information to anyone other than a patient and the patient's authorized representatives without their consent. The bill does not restrict patients from receiving information about themselves. Furthermore, it does not prohibit patients from voluntarily sharing their health information however they choose, nor does it require confidentiality where a patient discloses medical information to family members, friends or other individuals not employees of a covered entity.
A market maker or liquidity provider is a company or an individual that quotes both a buy and a sell price in a tradable asset held in inventory, hoping to make a profit on the bid–ask spread, or turn. The benefit to the firm is that it makes money from doing so; the benefit to the market is that this helps limit price variation (volatility) by setting a limited trading price range for the assets being traded.
EMV is a payment method based on a technical standard for smart payment cards and for payment terminals and automated teller machines which can accept them. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.
A digital identity is data stored on computer systems relating to an individual, organization, application, or device. For individuals, it involves the collection of personal data that is essential for facilitating automated access to digital services, confirming one's identity on the internet, and allowing digital systems to manage interactions between different parties. It is a component of a person's social identity in the digital realm, often referred to as their online identity.
Carte Bleue was a major debit card payment system operating in France. Unlike Visa Electron or Maestro debit cards, Carte Bleue transactions worked without requiring authorization from the cardholder's bank. In many situations, the card worked like a credit card but without fees for the cardholder. The system has now been integrated into a wider scheme called CB or carte bancaire. All Carte Bleue cards were part of CB, but not all CB cards were Carte Bleue.
Verifone, Inc. is an American multinational corporation headquartered in Coral Springs, Florida. Verifone provides technology for electronic payment transactions and value-added services at the point-of-sale. Verifone sells merchant-operated, consumer-facing and self-service payment systems to the financial, retail, hospitality, petroleum, government and healthcare industries. The company's products consist of POS electronic payment devices that run its own operating systems, security and encryption software, and certified payment software, and that are designed for both consumer-facing and unattended environments.
A direct debit or direct withdrawal is a financial transaction in which one organisation withdraws funds from a payer's bank account. Formally, the organisation that calls for the funds instructs their bank to collect an amount directly from another's bank account designated by the payer and pay those funds into a bank account designated by the payee. Before the payer's banker will allow the transaction to take place, the payer must have advised the bank that they have authorized the payee to directly draw the funds. It is also called pre-authorized debit (PAD) or pre-authorized payment (PAP). After the authorities are set up, the direct debit transactions are usually processed electronically.
ISO 8583 is an international standard for financial transaction card originated interchange messaging. It is the International Organization for Standardization standard for systems that exchange electronic transactions initiated by cardholders using payment cards.
Separation of duties (SoD), also known as segregation of duties, is the concept of having more than one person required to complete a task. It is an administrative control used by organisations to prevent fraud, sabotage, theft, misuse of information, and other security compromises. In the political realm, it is known as the separation of powers, as can be seen in democracies where the government is separated into three independent branches: a legislature, an executive, and a judiciary.
A payment gateway is a merchant service provided by an e-commerce application service provider that authorizes credit card or direct payment processing for e-businesses, online retailers, bricks and clicks, or traditional brick and mortar. The payment gateway may be provided by a bank to its customers, but can be provided by a specialised financial service provider as a separate service, such as a payment service provider.
A merchant account is a type of bank account that allows businesses to accept payments in multiple ways, typically debit or credit cards. A merchant account is established under an agreement between an acceptor and a merchant acquiring bank for the settlement of payment card transactions. In some cases a payment processor, independent sales organization (ISO), or member service provider (MSP) is also a party to the merchant agreement. Whether a merchant enters into a merchant agreement directly with an acquiring bank or through an aggregator, the agreement contractually binds the merchant to obey the operating regulations established by the card associations. A high-risk merchant account is a business account or merchant account that allows the business to accept online payments though they are considered to be of high-risk nature by the banks and credit card processors. The industries that possess this account are adult industry, travel, Forex trading business, multilevel marketing business. "High-Risk" is the term that is used by the acquiring banks to signify industries or merchants that are involved with the higher financial risk.
Authorization hold is a service offered by credit and debit card providers whereby the provider puts a hold of the amount approved by the cardholder, reducing the balance of available funds until the merchant clears the transaction, after the transaction is completed or aborted, or because the hold expires.
Attribute-based access control (ABAC), also known as policy-based access control for IAM, defines an access control paradigm whereby a subject's authorization to perform a set of operations is determined by evaluating attributes associated with the subject, object, requested operations, and, in some cases, environment attributes.
A floor trader is a member of a stock or commodities exchange who trades on the floor of that exchange for his or her own account. The floor trader must abide by trading rules similar to those of the exchange specialists who trade on behalf of others. The term should not be confused with floor broker. Floor traders are occasionally referred to as registered competitive traders, individual liquidity providers or locals.
A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or color-matching fans.
A credit card is a payment card, usually issued by a bank, allowing its users to purchase goods or services or withdraw cash on credit. Using the card thus accrues debt that has to be repaid later. Credit cards are one of the most widely used forms of payment across the world.
In computer security, general access control includes identification, authorization, authentication, access approval, and audit. A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject, based on what the subject is authorized to access. Authentication and access control are often combined into a single operation, so that access is approved based on successful authentication, or based on an anonymous access token. Authentication methods and tokens include passwords, biometric scans, physical keys, electronic keys and devices, hidden paths, social barriers, and monitoring by humans and automated systems.
References
- "Why Dual Approval Matters" (PDF). Citigroup.
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