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Security Alert – Smart Contract Wallets created in frontier are vulnerable to phishing attacks

November 29, 2025
5 min
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By ZadeNor AI Team
Security Alert – Smart Contract Wallets created in frontier are vulnerable to phishing attacks

Security Alert – Smart Contract Wallets created in frontier are vulnerable to phishing attacks

Security Alert: Smart Contract Wallets Created in Frontier Vulnerable to Phishing Attacks

The Threat: A Low-Likelihood, High-Severity Risk

In a recent discovery, a vulnerability has been found in smart contract wallets created using Ethereum Wallet version 0.4.0 (Beta 7) or earlier. This attack vector allows an attacker to impersonate the owner of a wallet and steal funds or tokens, making it a high-severity risk. However, the likelihood of this attack occurring is low, as it requires a specific set of circumstances.

The Vulnerability: A Complex Web of Interactions

The vulnerability arises when an affected wallet interacts with a malicious contract or when the owner account of an affected wallet interacts with a malicious contract that knows the address of the wallet..addHandler An attacker can then take control of the wallet, allowing them to steal funds or tokens and change the owner of the wallet.

The Impact: A Potential Loss of Funds

If you have a wallet created using the affected versions, you are at risk of losing funds or tokens if you interact with a malicious contract. This can happen if you send ether or interact with contracts you don't know, using the vulnerable wallet contracts or owner accounts.

The Solution: Upgrade and Stay Safe

To mitigate this risk, we recommend that you take one of the following steps:

Create a New Wallet

Create a new wallet with the latest version of Ethereum Wallet (any version from 0.5.0 or newer) and move your funds there. You can follow these steps:

  1. Download the latest version of Ethereum Wallet from the official website.
  2. Create a new wallet using the latest version.
  3. Move your funds from the affected wallet to the new wallet.

Use a Secondary Account

Create a secondary account for your everyday usage. This account should not be connected to your contract wallets.

Download the Latest Release

The Ethereum Foundation has released a new Ethereum Wallet version 0.7.6, which will detect your vulnerable wallets. Download the latest release and follow the steps described in the release notes to update your vulnerable wallets!

The Importance of Multisig

If you have configured your wallet with multisig, you are safer, as the attacker would need to make you send with all owners to malicious contract(s).

The Role of the Ethereum Foundation

The Ethereum Foundation has taken remedial action to address this vulnerability. They have released a new Ethereum Wallet version 0.7.6, which will detect your vulnerable wallets.

Conclusion: Stay Vigilant and Stay Safe

In conclusion, the vulnerability in smart contract wallets created in Frontier is a high-severity risk that requires attention. By taking the recommended steps to upgrade and stay safe, you can mitigate this risk and protect your funds and tokens. Remember to stay vigilant and always interact with contracts you know and trust.

Forward-Looking Thoughts

As the use of smart contracts and blockchain technology continues to grow, it is essential to stay ahead of potential vulnerabilities and threats. The Ethereum Foundation's efforts to address this vulnerability demonstrate their commitment to ensuring the security and integrity of the Ethereum network. As we move forward, it is crucial to continue to monitor and address potential vulnerabilities, ensuring that the benefits of blockchain technology are realized while minimizing the risks.


Source: https://blog.ethereum.org/en/2016/06/24/security-alert-smart-contract-wallets-created-in-frontier-are-vulnerable-to-phishing-attacks

About the Author

ZadeNor AI Team is a leading expert in WEB3 & BLOCKCHAIN, contributing to cutting-edge research and development in the field.