How to Fix the 'This dApp Could Be Malicious' Warning on Phantom Wallet
Phantom Wallet may block dApps with the warning 'This dApp could be malicious.' Learn why this happens and how dappsentry can help you detect and monitor this issue.
16 Jun 2025
Coinbase Wallet is widely used for securely managing crypto assets and interacting with decentralized applications (dApps). Occasionally, users encounter a security warning stating:
“This site may be unsafe. This site has been flagged as dangerous. If you continue, you could lose all of your crypto and NFTs.”

Although designed to protect users from scams and malicious activities, this security feature can sometimes mistakenly flag legitimate websites and dApps. This false positive disrupts user experiences and can negatively affect legitimate crypto projects.
If your website or dApp has been incorrectly flagged by Coinbase Wallet, here’s what you need to know:
Coinbase Wallet leverages automated security measures, third-party databases, and user-generated reports to protect users from fraudulent websites. Common reasons for flagging include:
These scenarios can lead to your site or dApp receiving Coinbase Wallet’s warning, disrupting your business and damaging user trust.
If Coinbase Wallet has flagged your site or dApp incorrectly, dappsentry helps you detect the issue and provides resources to appeal.
Head to dappsentry and enter your domain URL. The scan tool will identify if Coinbase Wallet or any other security database has flagged your website across 15+ providers.
Add your site to the dappsentry watchlist to monitor your domain continuously. This ensures proactive alerts if your site is flagged again in the future.
Purchase our comprehensive Unblock Guide PDF which includes step-by-step instructions and direct links to Coinbase Wallet’s appeal process and security partners.
Follow the guide to submit your appeal directly to the relevant providers with proper documentation verifying your site’s legitimacy.
Don’t let Coinbase Wallet’s “This site may be unsafe” warning disrupt your users and business reputation:
Protect your business from false security flags—use dappsentry to detect issues early.