How To Keep Smart Contracts Secure

How To Keep Smart Contracts Secure
Nft Constructer

Rick John

Nft Constructer


10 Min Read

A smart contract security audit is a set of programmed agreements that consist of functions and data that get automatically executed whenever a network tries to access it for a transaction requested by a user.


What Is A Smart Contract Audit?

A smart contract audit is a process of examining a blockchain's security, mainly its functions, to determine whether it is secure. Specifically, a smart contract audit involves examining the written code of a smart contract to identify any flaws in programming and vulnerabilities that could be exploited by attackers.

Smart contracts are growing and becoming very prevalent in the world of Blockchain technology. There are many different uses for them, and they are expanding to almost every industry segment. From Finance and IoT to the Supply Chain and Music industry, smart contracts apply everywhere. 

When it comes to security vulnerabilities of smart contract implementation, they're visible because they become part of the Blockchain ledger which is then exposed to all users of a said Blockchain platform.

These attacks can lead to loss of revenues, customer data exposure, and much more. That is why understanding how the proper implementation of smart contract security would be necessary in order to prevent these types of attacks from happening in this new emerging environment we're currently living in.


How Does It Work?

Ethereum is a blockchain-based platform that allows people to share money with one another, and it also makes the execution and outcomes of an agreement immediate without the need for any intermediary services. There are accounts in which users put Ether as the balance.

When the conditions are met again, those accounts send messages and transaction instructions from the smart contract over the ether, which executes a pre-defined function so that the user can have access to the data present in a smart contract."

Blockchain technology is all the rage - but recent Cyberattacks on Blockchain/Smart Contracts have people very wary


Smart Contracts Types

Smart contracts are composed of code, created and deployed over a network using programming languages such as Solidity and Vyper. The deployment is based on programming languages with Gas Fees.

  1. DAOs is a term used to describe decentralized autonomous organizations, which are self-governed and are not under the control of any external entity. 
  2. Smart contracts are binding agreements between two or more parties that automatically execute once certain conditions have been met. 
  3. Contract of Applied Logic (ALCs) is a term for smart legal contracts that combine a smart contract with the front-end user interface. 
  4. DApps are distributed applications that exist in combination with other smart contracts.

Common vulnerabilities              


  • As a smart contract developer, one of the most common vulnerabilities to avoid is the storage of unencrypted files. This can actually cause a major threat to your system because people have access to blockchain systems. To avoid this, make sure to never save anything confidential on the blockchain without first encrypting it.
  • Secure that the smart contract has a failsafe in case a node doesn't have the correct amount of storage or processing power.
  • Always make sure that function visibility is well-defined and stated clearly. You can always run into trouble if you don't take these things into account and can affect your business in countless ways. Pretend you're the programmer, remember?

Strategies for Securing Smart Contracts

Organizations are looking to implement smart contracts, and the main reason behind this is its security mechanisms. A blockchain-powered smart contract is designed to act as an untouchable executor of an agreement between parties.

 Some of the issues around recent smart contracts, however, have been that they were improperly designed and implemented during software development.


To protect your smart contract from attacks and vulnerabilities, you should:

-Follow best practices when writing the code 

  • -Perform smart contract security audits and penetration testing 
  • -Set log levels for all actions in your smart contract.
  • Use trusted blockchain tools for design, development, security, auditing, and exploitation.
  • When it comes to security, there are a few things you can do to increase the likelihood that your smart contracts will be safe and secure. 
  • First and foremost, always make sure you are using the most up-to-date and secure versions of Smart Contract software. Mistakes can be costly – both in terms of money and reputation. 
  • Make sure you are using the latest versions of tools like Solidity or Java, and keep up with industry best practices when it comes to coding and security.Secondly, always make sure that all parties involved in your smart contract transaction have agreed to its terms. This means that everyone involved needs to be confident in the security of the code – including you, the developer; your contractors; and any third-party service providers you may use. Make sure everyone is comfortable with the risks involved, and take steps to mitigate any potential risks before proceeding with a contract. 
  • Thirdly, keep an eye on your smart contract’s performance. If something goes wrong – whether it’s a bug or a hack – it’s important to know as soon as possible so that you can take appropriate measures. And finally, always remember that no system is completely immune to attack. So even if everything looks good on the surface, don’t hesitate to take additional precautions to ensure your smart contracts are truly safe and secure.

Why choose NFT CONSTRUCTER for Security Audit?

We have expertise in "blockchain" technology and have been studying and developing blockchain-related projects since 2017. As a consequence, our development team has a flawless portfolio of NFT projects that lend confidence. Furthermore, we continue to assist our customers' business aspirations even after the launch of the token or platform by offering round-the-clock technical support.

We work hard to give our customers the option of "100% customization," allowing them to modify the source code as needed. We begin with a precise "project plan" that outlines how our NFT development service will go from inspiration to deployment.


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