smart contracts</a> to spend an unlimited amount of funds on a user&rsquo;s account</strong>. In most cases, smart contracts are authorized to use a specific amount of funds. However, when an infinite approval is established, a smart contract asks to be granted access to an unlimited number of coins or tokens stored in the user&rsquo;s account.</p>\n<p>In the cryptocurrency world, <strong>this practice is quite controversial</strong>.</p>\n<p>To understand infinite approval better, let&rsquo;s have a look at a real-life example with Bancor.</p>\n<p>In order to be able to use the services, one of Bancor&rsquo;s users had authorized smart contracts so they could withdraw any amount of tokens from his account. However, unknowing to him, the smart contracts he had just authorized, were a major security risk. This type of vulnerability could have been exploited by hackers to get away with all of his tokens.</p>\n<p>Luckily, this didn&rsquo;t happen since Bancor became aware of this issue and made relevant changes. In this situation, the developer team ensured that the smart contracts will never ask for an unlimited amount of tokens during authorizations again. In order to make sure the user doesn&rsquo;t lose his funds, Bancor&rsquo;s programmers had to &ldquo;steal&rdquo; the user&rsquo;s tokens and return them at a later time.</p>\n<p>This incident brought out the fact that many <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-are-decentralized-applications-dapps/">decentralized applications (dApps)</strong></a> used infinite or overly large approvals. It included Compound, Uniswap, bZX, Aave, Kyber, dYdX, and many other platforms whose programmers practiced infinite approvals.</p>","level":"easy","meta_title":"What is Infinite Approval? 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Terms","updated":false,"chapter":"https://assets.bitdegree.org/crypto/assets/crypto-book/chapters/crypto-101-glossary.jpg","chapter_simple":"https://assets.bitdegree.org/crypto/assets/crypto-book/chapters-simple/crypto-glossary-101.jpg","rating":100,"sections":["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]}],"nextSection":{"id":463,"original_id":null,"author_id":43,"translator_id":null,"title":"What is Inflation?","slug":"what-is-inflation","section":"I","keyword":"Inflation","status":"published","definition":"happens when the purchasing value of money decreases while the prices increase.","content":"<p><strong>Inflation</strong> is the result of a process that includes a <strong>decrease</strong> in the <strong>purchasing value of money </strong>and an<strong> increase in price.</strong></p>","level":"easy","meta_title":"What is Inflation? Definition & Meaning | Crypto Wiki","meta_description":"Inflation meaning: Inflation - happens when the purchasing value of money decreases while the prices increase.","meta_keywords":null,"language":"en","created_at":"2022-03-21T15:17:15.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-inflation"},"prevSection":{"id":445,"original_id":null,"author_id":40,"translator_id":null,"title":"What is IOU?","slug":"what-is-iou","section":"I","keyword":"IOU","status":"published","definition":"is a declaration that recognizes the presence of debt. It is a phonetic abbreviation for the phrase \"I owe you.\"","content":"<p>To specify, IOU is any file that showcases that there is debt owed between two parties.&nbsp;</p>\n<p>IOUs are crucial papers in financial deals since they <strong>explain the debt connection between two parties</strong>, whether they are individuals or corporations. IOUs, although this, are not legally binding. They mostly serve as <strong>a warning</strong> and have no contractual force.</p>\n<p>IOUs are typically created in the heat of the moment, such as at the end of a business meeting, as a type of statement of intent. They are frequently accompanied by a more formal written contract or agreement.</p>\n<p>The adaptability of blockchain technology, particularly when combined with smart contract features on various protocols, enables users to effortlessly generate and transfer IOU tokens. With the popularity of <strong><a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-erc-20/">ERC-20 and <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-bep-20/">BEP-20 tokens,</strong> <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-minting/">minting IOU tokens is a simple and efficient method to represent debt in the cryptocurrency world. Crypto IOUs, like ordinary IOUs, lack binding authority.&nbsp;</p>\n<p>They are, though, a highly practical method to maintain debt relationships in control and to keep track of the money you borrow or lend.</p>\n<p>Besides, IOUs can be generated for any type of debt. IOUs are considered semi-formal papers, and their principal goal is to act as a reminder that two parties are in debt to one another. <strong>The elements of an IOU are determined by the parties.</strong> IOUs may include the names and addresses of the people involved, or they may just specify the level of debt.</p>\n<p>IOUs are typically used to relate to monetary debt, but they may also apply to other types of assets such as <strong>real estate and material objects</strong>. An IOU, in a broader context, does not have to be a tangible document. This can simply be a simple spoken agreement between parties describing the quantity of debt, as well as the period and terms for repayment.</p>\n<p>Moreover, a new type of IOU has developed as a result of the emergence of cryptocurrencies. <strong>Blockchain-based IOUs</strong> enables merchants to quickly generate tokens that reflect debt and trade across blockchains.&nbsp;</p>\n<p>An IOU crypto token serves the same function as an IOU notice in that it serves to identify a debt connection between two parties. For instance, if you lend <a href=https://www.bitdegree.org/"/crypto/buy-bitcoin-btc/">Bitcoin to a colleague and want documentation of the transaction, your colleague can generate an IOU token, which will be kept in your personal <strong><a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-wallet/">wallet.&nbsp;

/n

So, when you return the IOU token, you are effectively requesting reimbursement for the cryptocurrency you gave.</strong></p>","level":"medium","meta_title":"What is IOU? Definition & Meaning | Crypto Wiki","meta_description":"IOU meaning: IOU - is a declaration that recognizes the presence of debt. It is a phonetic abbreviation for the phrase \"I owe you.\"","meta_keywords":null,"language":"en","created_at":"2022-03-21T06:26:06.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-iou"},"currentChapter":"I","currentSection":"what-is-infinite-approval","chapterTitle":"I","readingLevel":"easy"},"url":"/crypto/learn/crypto-terms/what-is-infinite-approval","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0">

Crypto Terms: Letter I

What is Infinite Approval?

Infinite Approval MEANING:
Infinite Approval - is defined as the action of programming smart contracts to allow spending an unlimited amount of coins or tokens.
Easy
1 minute

Let's find out Infinite Approval meaning, definition in crypto, what is Infinite Approval, and all other detailed facts.

Infinite approval is a programming practice that enables smart contracts to spend an unlimited amount of funds on a user’s account. In most cases, smart contracts are authorized to use a specific amount of funds. However, when an infinite approval is established, a smart contract asks to be granted access to an unlimited number of coins or tokens stored in the user’s account.

In the cryptocurrency world, this practice is quite controversial.

To understand infinite approval better, let’s have a look at a real-life example with Bancor.

In order to be able to use the services, one of Bancor’s users had authorized smart contracts so they could withdraw any amount of tokens from his account. However, unknowing to him, the smart contracts he had just authorized, were a major security risk. This type of vulnerability could have been exploited by hackers to get away with all of his tokens.

Luckily, this didn’t happen since Bancor became aware of this issue and made relevant changes. In this situation, the developer team ensured that the smart contracts will never ask for an unlimited amount of tokens during authorizations again. In order to make sure the user doesn’t lose his funds, Bancor’s programmers had to “steal” the user’s tokens and return them at a later time.

This incident brought out the fact that many decentralized applications (dApps) used infinite or overly large approvals. It included Compound, Uniswap, bZX, Aave, Kyber, dYdX, and many other platforms whose programmers practiced infinite approvals.