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Crypto Terms:  Letter S

What is Smart Contract Audit?

Meaning:
Smart Contract Audit - an in-depth investigation and analysis of the code of a smart contract to find issues, errors, and security flaws.
medium
2 minutes

Let's find out Smart Contract Audit meaning, definition in crypto, what is Smart Contract Audit, and all other detailed facts.

A smart contract audit is a comprehensive analysis of a smart contract's code to identify bugs, errors, or security flaws, as well as possible fixes.

Since most smart contracts handle large sums of money, the audits are essential, because a single error or vulnerability can result in significant losses. More specifically, the users and stakeholders of the decentralized application in question can be at risk of losing all of their assets.

Smart contract audits are pretty complex because smart contracts frequently interact with one another. For this reason, the system checks are frequently expanded to include additional smart contracts involved in other transactions, even the ones in which a certain smart contract is not directly involved.

The recommendations of the auditors are announced to the project team ahead of time, and their responses are included in the final report. Teams are eager to obtain an audit in order to gain user confidence and improve the project's credibility because it is regarded as a symbol of authenticity and integrity

Typically, audits are carried out in phases:

  • The auditors and the team agree on the specifications (purpose, architecture, design, etc.) and the scope of the audit.
  • The auditors perform unit tests (testing individual functions) and integration tests (testing larger parts).
  • The auditors check for contract vulnerabilities using analysis tools and automated bug detection.
  • The auditors examine the code manually to determine the developer's intentions and interpret the findings in that context.
  • The team's findings and solutions are documented in the report.

Why are smart contract audits so important? For instance, the Ethereum chain split in 2016 was caused by a code vulnerability exploited by an attacker. The attacker was able to drain millions of dollars worth of ETH because of a simple bug. This eventually resulted in disagreements in the community and a hard fork because they couldn’t decide whether to forcibly return the assets or not.

In the booming DeFi business, where bug-filled smart contracts are frequently rushed out to suit investor demand, smart contract audits are becoming extremely vital. Harvest, bZx, Yam Finance, Eminence, and Balancer are just a few of the million-dollar hacks that have occurred in 2020 because of various bugs in smart contracts.

Internet of Things (IoT)<\/strong><\/a>.<\/p>\n<p>Smart home appliances can help make many chores and household processes automatic. From setting up sprinklers or a robot lawnmower outside to scheduling the coffee machine and putting a timer on the lights &ndash; tedious tasks can be controlled by just opening an app on the phone or a computer and adjusting the settings.<\/p>\n<p>Smart home technology can be convenient and help <strong>improve the sustainability<\/strong> of your home. If you have to leave the house for a while, you can adjust the thermostat so you&rsquo;re not wasting heat and then turn it back on again right before you get home. Some smart home devices are even designed to be pet-friendly &ndash; like automatic feeders.<\/p>\n<p>They can also help save money in the long term. While some smart home devices can be on the pricier end, their utility pays off quite quickly. The ability to automatically control heating or power usage can help cut down the money spent on monthly bills.<\/p>\n<p>The goal of smart home technology is to simplify many aspects of our everyday lives. These appliances can not only help with household upkeep but also our overall routine, such as maintaining our schedules or preparing shopping lists. New types of smart home appliances seem to pop up on the radar on a near-daily basis.<\/p>\n<p>The simplicity of smart home devices is especially advantageous for the elderly or people with disabilities who may struggle with household chores and may require some assistance. Smart vacuum cleaners can help ensure that the house is clean while home assistants can be set up with regular reminders to take medications or to order grocery deliveries.<\/p>\n<h2>Types of Smart Home Appliances<\/h2>\n<p>There is a wide range of smart home appliances on the market, varying from tools dedicated to home security and garden maintenance to small devices that make life inside the house easier.<\/p>\n<h3>Home Security<\/h3>\n<p>Smart home <strong>cameras<\/strong> are among the most popular digital household appliances. Most smart cameras are &ldquo;sleeping&rdquo; until they detect movement on the radar. They transfer data directly to the phone so there&rsquo;s no need to dig through hours upon hours of tape footage.<\/p>\n<p>Some smart cameras come with a microphone and speaker options. So, if you have a parcel arriving while you&rsquo;re at work, you can tell the delivery person to leave it in a safe location near the house.<\/p>\n<h3>Smart Cleaners<\/h3>\n<p>Smart cleaners can be designed for both indoor and outdoor use. Smart lawn mowers can be programmed to the territory surrounding your household, ensuring every inch of the area is covered. You can schedule the frequency of mowing and save yourself the physical extortion of pushing forward a giant lawnmower.<\/p>\n<p>However, perhaps the best-known example of smart cleaners is a robot vacuum. They can be used to dry or wet clean your house depending on the surface and can even be scheduled to work while you&rsquo;re out of the house.<\/p>\n<h3>Smart Speakers<\/h3>\n<p><strong>Smart speakers<\/strong> might be the most recognizable example of smart home appliances. Amazon&rsquo;s Alexa and the Google Home Assistant are prime examples of smart speakers. They are devices that connect to the internet and complete tasks personalized to the preferences of the homeowner.<\/p>\n<p>Smart speakers are perhaps the ultimate tools to help simplify your life at home. Smart speakers can create a network connection with other smart devices at home, extending their functionality to a higher degree. Their utility is near-endless.<\/p>\n<p>By sending voice commands, you can adjust the lights, lower the thermostat, lock the door, pick your favorite playlist, set up your grocery list for the day, or even set up the order &ndash; just about any household task can be made easy with smart speakers.<\/p>\n<h2>Blockchain Technology in Smart Homes<\/h2>\n<p>Although IoT devices are growing increasingly popular, concerns regarding their security&nbsp;cannot be overlooked. There have been recorded instances of hackers gaining access to user data by breaking into the Internet of Things or Internet of Toys (also IoT) devices.<\/p>\n<p>To mitigate the risks associated with digital household appliances, more and more companies are implementing <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-blockchain/">blockchain technology<\/strong><\/strong><\/a>&mdash;particularly <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-smart-contract/">smart contracts<\/strong><\/a>&mdash;to reinforce security. Smart contracts are self-executing programs that contain the client command and require certain conditions to be met in order to function.<\/p>\n<p>Blockchain technology employs a network of <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-decentralized-network/">decentralized nodes, making it next to impossible to compromise the entire system. The anonymity provided by smart contracts means that hackers cannot trace the direction of the client message and are unable to compromise data.<\/p>","definition":"a range of digital appliances used to enhance household systems.","status":"published","meta_title":"What is Smart Home? Definition & Meaning | Crypto Wiki","meta_description":"Smart Home meaning: Smart Home - a range of digital appliances used to enhance household systems.","meta_keywords":null}" :prev-section="{"id":725,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/Smart_Contract","level":"easy","author_id":1,"created_at":"2023-06-19T06:59:00.000000Z","updated_at":"2023-11-10T18:42:20.000000Z","slug":"what-is-smart-contract","title":"What is Smart Contract?","section":"S","keyword":"Smart Contract","content":"<p>A smart contract is a <strong>self-executing computer program used on<\/strong> <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-blockchain/">blockchain networks<\/strong><\/a> to verify transaction agreements between buyers and sellers. The contract is then distributed throughout the entire blockchain network.&nbsp;<\/p>\n<p>The code of the smart contract can only be executed when the conditions stated in the contract are met. This execution is irreversible, and <strong>it&rsquo;s next to impossible to alter the smart contract<\/strong>.<\/p>\n<p>Smart contracts allow for <strong>anonymous<\/strong> <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-peer-to-peer-p2p/">peer-to-peer <strong>transactions<\/strong> between two or more parties that may not find each other reliable. The use of smart contracts eliminates the requirement for third-party involvement during a transaction.<\/p>\n<p>Using a smart contract is a lot like getting a drink from a coffee machine. You select the criteria or choose what drink you want, pay for it, and get a drink in an instant, rather than getting in touch with the distributor of the coffee machine to make a contract for a cup of cappuccino.<\/p>\n<p>Neither you nor the hypothetical machine owner needs to know each other&rsquo;s identity for the transaction to be deemed valid. The anonymity of smart contracts is particularly favored by proponents of decentralized systems and a free economy.<\/p>\n<p>Smart contracts can also be used by <strong>businesses that employ private blockchain systems<\/strong>. A smart contract can act as a guarantee for both the customers and service providers that their assets will be protected if the deal falls out and the risk of financial loss is mitigated.<\/p>","definition":"a self-executing computer program used to verify transactions on the blockchain.","status":"published","meta_title":"What is Smart Contract? Definition & Meaning | Crypto Wiki","meta_description":"Smart Contract meaning: Smart Contract - a self-executing computer program used to verify transactions on the blockchain.","meta_keywords":null}" :model="{"id":703,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/Smart_contract","level":"medium","author_id":1,"created_at":"2023-06-19T06:59:00.000000Z","updated_at":"2023-12-17T12:02:23.000000Z","slug":"what-is-smart-contract-audit","title":"What is Smart Contract Audit?","section":"S","keyword":"Smart Contract Audit","content":"<p>A <strong>smart contract audit<\/strong> is a comprehensive analysis of a <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-smart-contract/">smart contract's<\/strong><\/a> code to identify bugs, errors, or security flaws, as well as <strong>possible fixes<\/strong>.<\/p>\n<p>Since most smart contracts handle large sums of money, the audits are essential, because a single error or vulnerability can result in significant losses. More specifically, the users and stakeholders of the <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-are-decentralized-applications-dapps/">decentralized application<\/strong><\/a> in question can be <strong>at risk of losing all of their assets<\/strong>.<\/p>\n<p>Smart contract audits are pretty complex because smart contracts frequently interact with one another. For this reason, the system checks are frequently expanded to include additional smart contracts involved in <strong>other transactions<\/strong>, even the ones in which a certain smart contract is not directly involved.<\/p>\n<p>The recommendations of the auditors are announced to the project team <strong>ahead of time<\/strong>, and their responses are included in the final report. Teams are eager to obtain an audit in order to gain user confidence and improve the project's credibility because it is regarded as <strong>a symbol of authenticity and integrity<\/strong>.&nbsp;<\/p>\n<p>Typically, audits are carried out in phases:<\/p>\n<ul>\n<li>The auditors and the team agree on the specifications (purpose, architecture, design, etc.) and the scope of the audit.<\/li>\n<li>The auditors perform unit tests (testing individual functions) and integration tests (testing larger parts).<\/li>\n<li>The auditors <strong>check for contract vulnerabilities<\/strong> using analysis tools and automated bug detection.<\/li>\n<li>The auditors examine the code manually to determine the developer's intentions and interpret the findings in that context.<\/li>\n<li>The team's findings and solutions are documented in <strong>the report<\/strong>.<\/li>\n<\/ul>\n<p><em>Why are smart contract audits so important? <\/em>For instance, the <a href=https://www.bitdegree.org/"https:////www.bitdegree.org//crypto//buy-ethereum-eth/">Ethereum chain split in 2016 was caused by a code vulnerability exploited by an attacker. The attacker was able to drain millions of dollars worth of ETH because of a <strong>simple bug<\/strong>. This eventually resulted in disagreements in the community and a <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-hard-fork-blockchain/">hard fork<\/strong><\/a> because they couldn&rsquo;t decide whether to forcibly return the assets or not.<\/p>\n<p>In the booming <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-defi/">DeFi business, where <strong>bug-filled smart contracts are frequently rushed out to suit investor demand<\/strong>, smart contract audits are becoming extremely vital. Harvest, bZx, Yam Finance, <strong>Eminence<\/strong>, and Balancer are just a few of the million-dollar hacks that have occurred in 2020 because of various bugs in smart contracts.<\/p>","definition":"an in-depth investigation and analysis of the code of a smart contract to find issues, errors, and security flaws.","status":"published","meta_title":"What is Smart Contract Audit? Definition & Meaning | Crypto Wiki","meta_description":"Smart Contract Audit meaning: Smart Contract Audit - an in-depth investigation and analysis of the code of a smart contract to find issues, errors, and security flaws.","meta_keywords":null,"author":{"id":1,"user_id":1,"created_at":"2023-05-03T14:30:55.000000Z","updated_at":"2023-05-11T07:18:20.000000Z","title":"Editor-In-Chief","slug":"aaron-s-editor-in-chief","description":"<p>Having completed a Master&rsquo;s degree on Economics, Politics &amp; Culture for the East Asia region, Aaron has written scientific papers with a comparative analysis of the differences between US&rsquo; Western and Japan&rsquo;s Collective forms of capitalism, 1945-2020.<\/p>\n<p>With close to a decade of experience in the FinTech industry, Aaron understands all of the biggest issues and struggles that crypto enthusiasts face. He&rsquo;s a passionate analyst who is concerned with data-driven and fact-based content, as well as that which speaks to both Web3 natives and industry newcomers.<\/p>\n<p>Aaron is the go-to person for everything and anything related to digital currencies. With a huge passion for blockchain &amp; Web3 education, Aaron strives to transform the space as we know it, and make it more approachable to complete beginners.<\/p>\n<p>Aaron has been quoted by multiple established outlets, and is a published author himself. Even during his free time, he enjoys researching the market trends, and looking for the next supernova.<\/p>","user":{"id":1,"first_name":"Aaron","last_name":"S.","email":"aaron@bitdegree.org","email_sanitized":"aaron@bitdegree.org","email_verified_at":"2023-12-01T09:40:20.000000Z","must_verify_email":false,"is_registered_with_wallet":false,"status":"active","country":"LT","last_connected_ip":"88.119.132.125","image_id":2641,"referral_token":"05TMu2NysXOCn525","referred_by":null,"created_at":"2023-05-03T14:30:55.000000Z","updated_at":"2024-01-09T15:22:21.000000Z","full_name":"Aaron S."}}}" :chapter-list="[{"id":1,"title":"Blockchain","slug":"blockchain","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-blockchain.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/blockchain-101.jpg","rating":100,"sections":[{"chapter_id":1,"order":1,"slug":"what-is-blockchain","title":"What is the Blockchain?","status":"published","modified_content":null},{"chapter_id":1,"order":2,"slug":"decentralized-blockchain","title":"Anonymous & Decentralized Blockchains: The Cornerstone of Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":3,"slug":"blockchain-transaction","title":"What is a Blockchain Transaction in Crypto?","status":"published","modified_content":null},{"chapter_id":1,"order":4,"slug":"crypto-fees","title":"The Different Types of Crypto Fees Explained","status":"published","modified_content":null},{"chapter_id":1,"order":5,"slug":"what-is-bridging-in-crypto","title":"The Key Notion Behind the Concept of Bridging in Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":6,"slug":"types-of-blockchains","title":"Different Types of Blockchains: What to Look Out For?","status":"published","modified_content":null}]},{"id":2,"title":"Cryptocurrencies","slug":"cryptocurrencies","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-cryptocurrencies.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/cryptocurrencies-101.jpg","rating":100,"sections":[{"chapter_id":2,"order":1,"slug":"what-is-a-cryptocurrency","title":"What is a Cryptocurrency?","status":"published","modified_content":null},{"chapter_id":2,"order":2,"slug":"how-does-cryptocurrency-work","title":"How Does Cryptocurrency Work?","status":"published","modified_content":null},{"chapter_id":2,"order":3,"slug":"is-cryptocurrency-a-good-investment","title":"Is Cryptocurrency a Good Investment? The Pros & Cons","status":"published","modified_content":null},{"chapter_id":2,"order":4,"slug":"coin-vs-token","title":"Coin VS Token: How Do They Differ?","status":"published","modified_content":null},{"chapter_id":2,"order":5,"slug":"what-are-stablecoins","title":"What are Stablecoins, Altcoins & Wrapped Coins?","status":"published","modified_content":null},{"chapter_id":2,"order":6,"slug":"what-is-a-bitcoin","title":"Bitcoin: the Pioneer of the Crypto World","status":"published","modified_content":null},{"chapter_id":2,"order":7,"slug":"what-is-ethereum","title":"The Ultimate Blockchain for dApp Creation: Ethereum","status":"published","modified_content":null},{"chapter_id":2,"order":8,"slug":"what-is-cardano-in-crypto","title":"What is Cardano and What is It Used For?","status":"published","modified_content":null},{"chapter_id":2,"order":9,"slug":"what-is-shiba-inu-coin","title":"Shiba Inu: the Dogecoin Killer","status":"published","modified_content":null},{"chapter_id":2,"order":10,"slug":"what-is-solana-in-crypto","title":"Is Solana an Improved Version of Ethereum?","status":"published","modified_content":null},{"chapter_id":2,"order":11,"slug":"what-is-polkadot-in-crypto","title":"The Bridge Between Blockchains: Polkadot","status":"published","modified_content":null},{"chapter_id":2,"order":12,"slug":"what-is-polygon-in-crypto","title":"Polygon: the Essential Scaling Solution for Ethereum","status":"published","modified_content":null},{"chapter_id":2,"order":13,"slug":"what-is-luna-crypto","title":"The Bumpy Road of Terra (LUNA)","status":"published","modified_content":null},{"chapter_id":2,"order":14,"slug":"what-is-fantom-crypto","title":"Is Fantom (FTM) Yet Another Ethereum Killer?","status":"published","modified_content":null},{"chapter_id":2,"order":15,"slug":"what-is-aave-crypto","title":"Aave: Crypto Lending Trailblazer","status":"published","modified_content":null},{"chapter_id":2,"order":16,"slug":"what-is-algorand-crypto","title":"Did Algorand Truly Solve the Blockchain Trilemma?","status":"published","modified_content":null},{"chapter_id":2,"order":17,"slug":"what-is-olympus-dao","title":"Does Olympus DAO Have Anything to Do With Mythology?","status":"published","modified_content":null},{"chapter_id":2,"order":18,"slug":"what-is-avax","title":"Is Avalanche Network (AVAX) Rightfully Called the Future of DeFi?","status":"published","modified_content":null},{"chapter_id":2,"order":19,"slug":"what-is-monero-coin","title":"Monero: Where Cryptocurrency Meets Cryptography","status":"published","modified_content":null},{"chapter_id":2,"order":20,"slug":"what-is-ripple-xrp","title":"Is Ripple \"it\" When it Comes to Cross-Border Transactions?","status":"published","modified_content":null},{"chapter_id":2,"order":21,"slug":"practical-use-of-cryptocurrencies","title":"The Practical Use of 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Standards","status":"published","modified_content":null},{"chapter_id":3,"order":5,"slug":"how-to-buy-crypto","title":"From Fiat to Crypto: How to Buy Crypto for the First Time","status":"published","modified_content":null},{"chapter_id":3,"order":6,"slug":"fiat-to-crypto","title":"Taking Profits: Turning Crypto Into Fiat","status":"published","modified_content":null},{"chapter_id":3,"order":7,"slug":"how-to-use-crypto","title":"You\u2019ve Got Crypto: What Can You Do With It?","status":"published","modified_content":null}]},{"id":4,"title":"Crypto Wallets","slug":"crypto-wallets","updated":false,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-crypto-wallets.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/crypto-wallets-101.jpg","rating":80,"sections":[{"chapter_id":4,"order":1,"slug":"what-is-a-crypto-wallet","title":"What is a Crypto Wallet?","status":"published","modified_content":null},{"chapter_id":4,"order":2,"slug":"hot-wallet-vs-cold-wallet","title":"Hot Wallet VS Cold Wallet: Which One to Pick?","status":"published","modified_content":null},{"chapter_id":4,"order":3,"slug":"non-custodial-wallet","title":"What are Non-Custodial Crypto Wallets?","status":"published","modified_content":null},{"chapter_id":4,"order":4,"slug":"what-is-metamask","title":"Metamask: The Leading Non-Custodial Wallet","status":"published","modified_content":null},{"chapter_id":4,"order":37,"slug":"how-safe-is-cryptocurrency","title":"The Key Crypto Wallet Safety Practices: How Safe Can Crypto Be?","status":"published","modified_content":null}]},{"id":5,"title":"NFTs","slug":"nfts","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-nfts.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/nfts-101.jpg","rating":100,"sections":[{"chapter_id":5,"order":2,"slug":"how-to-trade-nfts","title":"NFT Trading: The Ins and Outs","status":"published","modified_content":null},{"chapter_id":5,"order":3,"slug":"buying-nft","title":"Tips and Tricks of Choosing the Right NFTs","status":"published","modified_content":null},{"chapter_id":5,"order":4,"slug":"how-to-store-nft","title":"How to Store NFTs: Best Practices","status":"published","modified_content":null},{"chapter_id":5,"order":5,"slug":"how-to-create-an-nft","title":"How to Create Your Own NFTs?","status":"published","modified_content":null},{"chapter_id":5,"order":6,"slug":"how-to-make-passive-money-with-nft","title":"Making Passive Money with NFTs","status":"published","modified_content":null}]},{"id":6,"title":"dApps & Defi","slug":"dapps-and-defi","updated":true,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-dapps.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/dapps-defi-101.jpg","rating":80,"sections":[{"chapter_id":6,"order":1,"slug":"what-are-nfts","title":"What are Non-Fungible Tokens 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Contracts?","status":"published","modified_content":null},{"chapter_id":6,"order":7,"slug":"what-is-a-dao-in-crypto","title":"The Notion of a Decentralized Autonomous Ogranization (DAO)","status":"published","modified_content":null},{"chapter_id":6,"order":8,"slug":"what-is-staking-in-crypto","title":"What is the Goal of Staking Crypto Assets?","status":"published","modified_content":null},{"chapter_id":6,"order":9,"slug":"what-is-liquidity-pool-in-crypto","title":"What is a Liquidity Pool and How Does It Work?","status":"published","modified_content":null},{"chapter_id":6,"order":10,"slug":"what-is-automated-market-maker","title":"Automated Market Maker: the Cornerstone of the Decentralized Crypto Exchange Industry","status":"published","modified_content":null},{"chapter_id":6,"order":11,"slug":"what-is-yield-farming-in-crypto","title":"The Main Yield Farming 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