With regular exploits in the highly competitive world of #DeFi, smart contract audits are a critical component of crypto #security as most protocols run on an intricate set of smart contracts. A good smart contract audit accomplishes two key objectives. First and foremost is obviously security - quality smart contract assurance helps identify potential issues, and ensure that the protocol is taking the necessary steps to address any #bugs or flaws that could put its users’ funds at risk. Although there are no guarantees that a protocol will be secure after an audit, a good smart contract auditor can still perform comprehensive reviews to uncover potential issues, potentially preventing catastrophic #vulnerabilities after launch.
How to choose a smart contract auditor?
One of the first steps in finding the right smart contract #auditor is to check the #portfolios of projects/platforms they have audited in the past. Doing so will allow you to see the number of audits they have worked on, and perhaps more importantly if any of the projects/platforms they have worked on have been exploited. Also, the size/popularity of the projects they have audited will help determine whether the auditor is worth hiring as larger projects will tend to attract more attention from hackers.
While most auditors will offer #Ethereum contract audits, only some will have the expertise to audit projects on altchains such as #Solana, #Polygon, #Avalanche, #Fantom, and #BNB. This is because even EVM-compatible chains have different underlying architectures, not to mention certain altchains such as #Solana and #NEAR use a completely different programming language altogether, e.g. Rust. Different firms are going to have different areas of expertise in auditing protocols built on different #blockchains, so it would be wise to assess their level of competency before engaging them for an #audit. At a minimum, you should look at an audit firm’s portfolio to see if it has conducted any past audits on your chain of choice. For example, If you are opting for a #Solana-based Contract Audit, check the company's past audits for #Solana-based projects.
Finally, the quality of audit reports is another factor to look for in a good auditor. A good report should include a detailed description of all the issues that were found during the course of the investigation. It’s also very important to note if the findings of the audit have been addressed by the project. While you would expect a smart contract audit report to be quite technical, having a report which is well structured, and written concisely in a manner understandable by most people is also a good sign to look out for.
1. Hacken
of projects onboarded: 700+
#####Total MCAP of portfolio: $100B+
Major clients: #FTX, #Avalanche, #VeChain, #Huobi, #Kyber
Chains supported: #Ethereum, #EVM chains, #Solana, #Polygon, #Avalanche, #NEAR, #Fantom, #BNB
of audited projects on Rektboard: 2
Total amount rekt: $8.5M
#Hacken is a leading cybersecurity consulting company founded by security specialists and white hat hackers with a focus on blockchain security. Since its inception in 2017, Hacken has been educating and growing the ethical hacker community, making them an eminent player in the industry. Hacken has made efforts to continually nurture and build the blockchain security ecosystem with a $1.5M investment in Cer.live, and launched products such as the Hackenproof BugBounty platform with 10000+ ethical hackers, Hacken.ai, #hVPN, hPass, etc. Currently, it has over 700 projects in its portfolio and secured over $100B in market cap. The company has worked with over 80 projects, including renowned names like #FTX, #Avalanche, #VeChain, #Huobi, #Kyber, and more. Aside from being a #blockchain security consulting company, #Hacken provides a wide range of security services to its clients, such as web/mobile penetration testing, vulnerability assessments, and coordination of bug bounty programs.
2. CertiK
of projects onboarded: 1,800+
Total MCAP of portfolio: $278B+
Major clients: #BNB chain, #Terra, #Polygon, The #Sandbox
Chains supported: All chains
of audited projects on Rektboard: 5
Total amount rekt: $100M
#CertiK is a blockchain security company founded in 2018 by professors from #Columbia and #Yale. The company utilizes formal verification and AI technology in collaboration with some of the best cybersecurity experts for its end-to-end blockchain security audit services. Through this, #CertiK mathematically validates the safety of smart contracts through a combination of formal and manual verification. Additionally, the company has developed “CertiK Chain”, a security-focused blockchain built to enhance the security of smart contracts. CertiK claims that it has audited over 1,800 projects and assessed over $278B in total market cap valuation. The company has conducted audits for popular chains such as #BNB chain, #Terra, #Polygon, and The #Sandbox. It is also backed by #Binance, #Coinbase, and #GoldenSachs. Other services of CertiK include #Skynet, #Skytrace, and #PenetrationTesting.
3. Slowmist
of projects onboarded: 1000+
Total MCAP of portfolio: $150B+
Major clients: #Binance, #OKX, #Huobi, #Pancakeswap, #Crypto.com
Chains supported: #Ethereum (All EVM chains), #EOS, #Fabric, #Solana, #VeChain, #ONT
of audited projects on Rektboard: 1
Total amount rekt: $34M
Founded in 2018, #SlowMist is a blockchain security firm specializing in providing protection for the blockchain ecosystem. The team at SlowMist has over 10 years of experience in network security and has worked with various projects such as #Binance, #OKX, #Huobi, #Pancakeswap, and #Crypto.com. Aside from providing security audits and other related services, SlowMist also offers a variety of other security-related products and services. Some of these include #MistTrack, Anti-money laundering (#AML) software, #Vulpush (Vulnerability monitoring), and #SlowMist Hacked (Crypto hack archives). The firm has partnered with various international and domestic security firms such as #Akamai, #Cloudflare, #FireEye, #BitDefender, and #IPIP to provide additional value to its services. One notable SlowMist service is MistTrack, a system that tracks the movement of stolen funds. Since its launch, it has served over 60 customers and recovered close to $1B in stolen funds.
4. Quantstamp
of projects onboarded: 200+
Total MCAP of portfolio: $200B+
Major clients: Maker, Curve, OpenSea
Chains supported: Every Chain
of audited projects on Rektboard: 3
Total amount rekt: $48M
#Quantstamp is one of the most recognized smart contract auditing companies in the #blockchain sector. Since its founding, it has performed over 200 audits and helped secure over $200B in value. Their team consists of PhDs and security professionals with experience in the largest technology companies such as #Google, #Facebook, #Apple, and #Ethereum Foundation. Quantstamp has a strong team of security experts to provide its auditing services in any language, including languages specifically designed for use in blockchain applications. The company has audited numerous blockchain systems, this includes #Ethereum 2.0, #Solana, #BNB Chain, #Cardano, and protocols such as #Maker, #Curve, and #OpenSea. Its services include auditing Layer 1 blockchains, smart contract-powered #NFT and #DeFi applications, and developing financial primitives for Layer 1 blockchain ecosystems.
5. Halborn
of projects onboarded: 150+
Total MCAP of portfolio: $75B+
Major clients: BlockFi, ApeCoin, Avalanche, THORChain, Polygon
Chains supported: Ethereum, Terra, Cosmos Tendermint, Algorand
of audited projects on Rektboard: 1
Total amount rekt: $31M
#Halborn was founded in 2019 by Rob Behnke and Steven Walbroehl, two prominent ethical hackers. Since then, the organization has grown to over 80 highly skilled security engineers. #Halborn specializes in analyzing and testing blockchain applications for security #vulnerabilities and design issues. By performing both manual and automated testing, they ensure that the smart contract application is ready for mainnet. The firm specializes in protocols such as #Ethereum, #Substrate, #Solana, #CosmWasm, #Terra, #Cosmos Tendermint, and #Algorand. Their clients include #BlockFi, #ApeCoin, #Avalanche, #THORChain, and #Polygon. Besides smart contract audits, the firm also provides #cybersecurity consulting (Security Advisory As A Service), Advanced Penetration Testing, #DevOps & Automation.
6. OpenZeppelin
of projects onboarded: Not Stated
Total MCAP of portfolio: $10B
Major clients: Ethereum Foundation, Coinbase, Compound, Aave, The Graph
Chains supported: Ethereum
of audited projects on Rektboard: 1
Total amount rekt: $275K
“The standard for secure blockchain applications” is what #OpenZeppelin calls itself. #OpenZeppelin is a #cybersecurity technology and services company known for developing its #Solidity libraries known as #OpenZeppelin Contracts. Developers can easily integrate these libraries into their applications through OpenZeppelin's native SDK. Since 2015, the company has helped protect assets worth over $10B in some of the most prominent organizations in the crypto sector, including but not limited to #Ethereum Foundation, #Coinbase, #Compound, #Aave, and The #Graph. Besides this, OpenZeppelin was the first #cybersecurity company to introduce #gamification to identify security vulnerabilities in smart contracts. OpenZeppelin’s “#Ethernaut” is a game that challenges gamers to find and exploit security weaknesses in smart contracts to move to the next level. The company also provides free services such as “Defender,” which helps projects automate their smart contract administration, offering a secure and private transaction infrastructure, create automated scripts, and more.
7. Trail of Bits
of projects onboarded: 500+ (Only For Blockchain Security Audits)
Total MCAP of portfolio: $25B+
Major clients: #yearn.finance, #LooksRare, #Acala, #Balancer, #Nervos
Chains supported: Ethereum, Tezos, Polkadot,Arbitrum, Polygon, etc. (view the full list here)
of audited projects on Rektboard: 0
Total amount rekt: 0
Founded in 2012, Trail of Bits is a cybersecurity industry giant with an extensive list of big-name customers such as #Adobe, #Microsoft, #Stripe, #Reddit, #Zoom, #Airbnb, etc. The firm has three main services: Software Assurance, Security Engineering, and Research and Development. Under its Software Assurance umbrella, the company provides security audits for blockchain, software hardening, infrastructure security, threat modeling, and cryptographic review. So far, the company has conducted smart contract audits for industry giants such as #yearn.finance, #LooksRare, #Acala, #Balancer, #Nervos, and more. The team at Trail of Bits doesn't just focus on blockchain security; they also develop tools that help developers and researchers find and fix critical vulnerabilities. One of these is Manticore, a multi-contract and multi-transaction emulator. Its other tools include #Ethersplay, #Slither, and #Echidna. Besides fixing bugs and software, the firm also provides a large library of open source work and expert training courses to educate and deepen people's understanding of reverse engineering, program analysis, penetration testing, etc.
8. Consensys Diligence
of projects onboarded: 100+
Total MCAP of portfolio: $11B+
Major clients: #0xexchange, #Aave, #Balancer, #Uniswap
Chains supported: #Ethereum
of audited projects on Rektboard: 1
Total amount rekt: $1.3M
#Consensys focuses on developing cutting-edge blockchain applications and software for the Ethereum ecosystem unlike other firms on this list. However, its flagship #cybersecurity product, #ConsenSys Diligence, is a comprehensive security analysis tool that's designed to perform a deep analysis of smart contracts. With #ConsenSys Diligence, projects can ensure that their #Ethereum application is ready and secure. This is achieved through a combination of blockchain security analysis tools and a team of experienced smart contract auditors. Over the years, the company has successfully protected over 100 blockchain companies and uncovered over 200 issues. #0xExchange, #Aave, #Balancer, and #Uniswap are some of the projects that the firm has audited. Aside from security auditing, the company provides two other services known as #Fuzzing, a service that enables users to find bugs immediately after writing their first specification, and #Scribble, a specification language and runtime verification tool that translates high-level specifications into #Solidity code.
One of Consensys’ clients, The Big Combo (Growth DeFi) was a victim of an exploit. The attacker exploited a bug to make the staker contract accept a liquidity pair containing a fake token, and was able to remove $1.3M in liquidity.
9. Kudelski Security
of projects onboarded: 200+
Total MCAP of portfolio: $230B
Major clients: #Binance, #Solana, #Crypto.com, #InputOutput, #Monero, #Zcash
Chains supported: #Ethereum, #BNB Chain, #Solana, #Cardano, #Cosmos Tendermint
of audited projects on Rektboard: 0
Total amount rekt: 0
#Kudelski Security is a Swiss-based cybersecurity firm that provides innovative solutions and consulting services to help organizations improve their cyber confidence. Although it was founded two years ago, Kudelski has already worked with some of the most prominent names in the cryptocurrency sector. Its clients include #Binance, #Solana, #Crypto.com, Input #Output, #Monero, and #Zcash. To date, the company has completed over 200 security audits, secured over $230B in market cap, and audited more than 500,000 lines of code. Aside from its blockchain security services, the company provides advisory services, technology optimization, managed security, managed detection and response, and incident response.
10. ChainSecurity
of projects onboarded: 85+
Total MCAP of portfolio: $17B
Major clients: #yearn.finance, #Maker, #Compound, #Rarible, #Curve, #Kyber network
Chains supported: #Ethereum
of audited projects on Rektboard: 0
Total amount rekt: 0
#ChainSecurity is led by security experts from the renowned university #ETHZurich. The company has worked with more than 85 crypto organizations and established corporations, including #yearn.finance, #Maker, #Compound, #Rarible, #Curve, #Kyber network, and have helped #PwC Switzerland improve its smart contract audit capabilities. To date, the company has secured more than $17B worth of assets. #ChainSecurity also developed an automated audit platform that enables projects to analyze smart contracts and protect their assets. The company’s platform performs security assessments by identifying security vulnerabilities and verifying the functional correctness of smart contracts and blockchain projects. Besides that, ChainSecurity also offers automated security analysis of Ethereum smart contracts.
Conclusion
Although smart contract audits are important, they shouldn’t be viewed as a magical solution to avert all forms of hacks. Instead, they should be viewed as part of a process that involves continuous improvement. Once a project has had an audit, developers should still put in the legwork to ensure that the findings are addressed, and they put in the right security practices to ensure that the possibility of future vulnerabilities is minimized. Before smart contracts can be trusted by users, the developers still need to ensure that they perform as intended. This also means carrying out security tests that are specific to the protocol.
Having an active Bug Bounty program after a security audit is also important. Rather than relying on a single security professional, Bug Bounty programs attract security experts around the globe with diverse backgrounds and varying degrees of expertise to improve the underlying security. Incentivizing a global network of experts to comb through your smart contracts for bugs ensures that all assets in scope are reviewed thoroughly.
Overall, having a security audit is still certainly very helpful to weed out any potential issues and help a project gain a certain level of confidence, and it is always recommended for users to select an auditor with a good reputation and proven track record.
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