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Home » Blog » How To Protect NFTs from Hacks: Essential Security Tips
Guide & Crypto Education

How To Protect NFTs from Hacks: Essential Security Tips

Nancy P. Howard
Last updated: 18/04/2025 1:42 PM
Nancy P. Howard
6 months ago
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Disclosure: We are not a registered broker-dealer or an investment advisor. The services and information we offer are for sophisticated investors, and do not constitute personal investment advice, which of necessity must be tailored to your particular means and needs. !
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In this article, I will talk about the various ways you can keep your NFTs safe from being hacked. The world of Cybersecurity is evolving as quickly as NFTs, meaning that your digital assets are always at risk of cyber-attacks.

Contents
  • What NFTs?
  • How To Protect NFTs from Hacks
    • Raise the Security of Your Wallet
    • Activate 2-step Authentication (2SA)
    • Watch out for Phishing Attempts
    • Smart Contracts Audit
  • Best Practices for NFT Security
  • Securing Your NFTs with Smart Contracts
    • Recognize the Weaknesses in Smart Contracts
    • Verification of a Smart Contract is Important
    • Established NFT Standard
    • Be Cautious With Unverified Contracts
    • Use Safe Transaction Techniques
    • Be Aware of Contract Revisions
  • Pros And Cons
  • Conclusion

Safeguarding your NFTs starts with putting them in secure wallets, avoiding phishing scams, and implementing other best practices. Taking these measures will greatly reduce the risk of losing your valuable NFTs.

What NFTs?

NFTs, or Non-Fungible Tokens, act like digital memorabilia, or collectibles, which that are worth extraordinary value to collectors because they cannot be duplicated. NFTs are often used in creative industries where artists, musicians, and other creators aim to sell their work.

Record breaking amount of income can now be generated from creators and collectors because of the use NFTs. Blockchain acts as a middleman between owners and buyers.

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What NFTs?

A buyers would now be able to verify the authenticity of the token and ownership through the blockchain. Unlike Bitcoin, NFTs cannot be replicated, which means that they cannot be interchanged.

With the use of blockchain technology, NFTs track the certificate of ownership of an asset. Because of all these innovations, there is now a transformation on digital content ownership.

How To Protect NFTs from Hacks

How To Protect NFTs from Hacks

OpenSea offers a marketplace for NFTs and is frequented by users making it vulnerable to hacks. If you want to make sure your NFTs on OpenSea are well secured against hacks, these crucial actions will enable you to do so.

Raise the Security of Your Wallet

OpenSea is compatible with several wallets and a hardware wallet(Open Sea or Trezor) will make sure your private keys are offline. Always make sure your wallet is securely linked to OpenSea.

Activate 2-step Authentication (2SA)

OpenSea has yet to provide wallet 2FA, but enable 2FA for the email linked to your account to provide an added layer of protection against unauthorized logons.

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Watch out for Phishing Attempts

Make it a point to double check URLs prior to clicking them, even in social media and emails. If you click on links provided from unverified sources, you risk losing access to your NFTs.

Smart Contracts Audit

Prior to buying NFTs off OpenSea, make use of Etherscan to look over pending and active smart contractsfor any potential exploits or bugs.

Best Practices for NFT Security

Use a Secure Wallet: It is best to protect NFTs with hardware wallets like Ledger or Trezor since they store assets offline.

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Enable Two-Factor Authentication (2FA): Make 2FA compulsory to all accounts as a basic form of added security for the account.

Enhance Password Strength: Ensure to have robust and distinct passwords for each NFT platform and wallet associated.

Bear Phishing Scams in Mind: Ensure to authenticate platform links alongside any emails received, avoiding malicious websites.

Conduct Smart Contract Audits: Conduct security audits alongside other checks before engaging with smart contracts.

Update All Software Regularly: Periodically renew wallet applications and portal softwares to maintain security standards.

Store Recovery Keys Safely: Ensure storage for recovery phrases is thoroughly offline and secure.

Avoid Using Public Wifi Networks: Avoid spending time on unprotected networks iscritical for transactions regarding NFTs and VPNs are recommended for such cases.

Use Cold Storage for NFTs Held Long-Term: For easily accessible long term storage, transfer NFTs into cold wallets.

Confirm Transfer Details: Once transaction confirmation takes place, ensure to authenticate wallet address and details.

Securing Your NFTs with Smart Contracts

Recognize the Weaknesses in Smart Contracts

There are a variety of self-enforcing agreements known as a smart contracts where one or multiple parties are executed automatically. Just like any form of technology, it is vulnerable to unplanned attacks. Prepare for an audit and construct multi-step secured codes.

Verification of a Smart Contract is Important

Paying for Just One Audit: Make sure that there are respectable auditing agencies reviewing the contract. Sometimes there’s an audit waiting to be claimed on Certik or Quantstamp, firms that analyze vulnerable points in smart contract codes.

Review the Contract Corde on SOP: In possible cases try and analyze a smart contract’s code personally and in situations where you can’t, get a professional.

Established NFT Standard

ERC-721 and ERC-1155: These two are considered the most used policies concerning NFTs on Ethereum. They offer a sound stamp of best practices making the system less receptive to attacks.

Stick to Trusted Platforms: Select NFT marketplaces and platforms which are trusted and utilize safe smart contract practices.

Be Cautious With Unverified Contracts

Refrain from engaging with smart contracts from unverified or unknown origin. When buying an NFT, always check if the contract is verified on Etherscan or Rarible to avoid unverified contracts.

Use Safe Transaction Techniques

Employ Multi-Signature Contracts: For valuable NFTs, it may be wise to utilize a multi-signature contract that requires more than one private key to approve a transaction.

Restrict Permission Granted: Reduce the level of control permitted to the smart contract. Do not give blanket approvals for transfers or access to the NFTs you own.

Be Aware of Contract Revisions

Stay up to date with any revisions to the smart contract of the NFT you own. Sometimes developers upgrade contracts and patch them in other cases to address vulnerabilities.

Follow the security advisories related to the blockchain you are on, such as Ethereum or Solana, and monitor them for any known exploits to the smart contracts.

Pros And Cons

Protection MethodProsCons
Using a Secure Wallet (Hardware Wallet)– High-level protection by keeping private keys offline. – Less risk of being hacked online.– Can be expensive to purchase. – Inconvenient for frequent transactions.
Enabling Two-Factor Authentication (2FA)– Adds an extra layer of security to accounts. – Reduces the risk of unauthorized access.– Requires an additional step to log in. – Can be inconvenient if 2FA codes are lost or unavailable.
Using Strong, Unique Passwords– Simple and effective method for securing accounts. – Prevents unauthorized access.– Hard to remember multiple strong passwords. – Needs a password manager to store securely.
Being Cautious of Phishing Scams– Protects against common online scams. – Helps maintain control over sensitive data.– Requires constant vigilance. – Can be difficult to spot sophisticated phishing attempts.
Verifying and Auditing Smart Contracts– Ensures that the smart contract is safe and secure. – Helps avoid interacting with malicious contracts.– Time-consuming to verify contracts. – Requires technical knowledge or professional audits.
Regular Software Updates– Keeps your wallet and platform apps up to date with the latest security patches.– May require periodic maintenance. – Some updates could cause compatibility issues with older devices or software.
Backing Up Recovery Phrases & Keys– Ensures you can recover access to your NFTs if needed. – Keeps assets safe if the device is lost or stolen.– Backup storage can be targeted by hackers. – Loss of backup can mean permanent loss of access.
Avoiding Public Wi-Fi for Transactions– Prevents exposure to man-in-the-middle attacks. – Keeps transactions more secure.– May be inconvenient if you need to use public Wi-Fi. – VPN or secure networks may require extra cost or setup.
Using Cold Storage for Long-Term NFTs– Provides top-tier security by keeping NFTs offline. – Ideal for holding NFTs long-term without worrying about online threats.– Not practical for frequent sales or trades. – Could be lost if storage is damaged or misplaced.
Verifying Transfer Details– Reduces the chances of sending NFTs to the wrong address. – Helps prevent loss of assets.– May take extra time and attention during each transfer. – Errors still possible despite verification.

Conclusion

To sum it all up, protecting your NFTs from theft entails a blend of practices involving the use of hardware wallets, two-factor authentication, phishing scams, and smart contract audits.

The outlined tactics can protect your assets from cyber attacks while enabling you to enjoy the advantages that NFTs offer with minimal danger to your collection.

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ByNancy P. Howard
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Nancy P. Howard has been working as a journalist at an online magazine in London for a year. She is also a professional writer in such topics as blogging, IT and marketing.
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