Zerion, a self-custodial cryptocurrency wallet supporting EVM-compatible networks and Solana, has taken its web application offline after identifying abnormal activity on app.zerion.io. The company first alerted users on April 10 via its official X account, urging them to avoid the platform pending further review. In a follow-up statement hours later, Zerion confirmed a proactive shutdown and noted that security partner Blockaid had blocked the domain as an extra safeguard. Mobile and extension users face no disruption, with the firm stressing that all assets remain under direct user control due to the non-custodial design.
Web App Taken Offline
Zerion’s engineering team detected abnormal activity on the web interface on April 10, 2026. The first official alert was issued at approximately 21:17 GMT, followed by a full proactive shutdown by 23:38 GMT that same evening. Blockaid, the on-chain security provider integrated into Zerion’s phishing defense system, independently flagged and restricted the domain. This coordinated response prevented further user interactions while preserving full functionality across unaffected channels.
Zerion operates as a non-custodial platform, meaning private keys and funds never leave user devices or connected wallets. This structure inherently limits the impact of any frontend anomalies. The move aligns with industry best practices for rapid containment in decentralized finance environments, where web-based entry points often serve as primary attack vectors.
Funds Confirmed Secure
“No funds are at risk,” Zerion stated explicitly in its communications. The company repeated its earlier advisory: “User Funds are safe on the wallet. Please only refer to official communication from the team.” It added that iOS and Android mobile applications plus the browser extension are safe and are not affected. Zerion pledged continued monitoring and promised another update once the web app is restored.
As of April 11, 2026 morning (latest update at 04:22 GMT), the web app remains offline and the investigation is ongoing.
Key Advice for Users
Users who accessed the web app before the shutdown are strongly encouraged to:
- Review their transaction history in Zerion (or connected wallet)
- Revoke any unrecognized or suspicious approvals
Key Incident Summary
- Investigation into abnormal activity on app.zerion.io launched: April 10, 2026 at ~21:17 GMT
- Web application proactively disabled: April 10, 2026 by 23:38 GMT
- Blockaid enforced domain-level block as precaution
- iOS, Android, and browser extension platforms remain fully operational and unaffected
- Web app currently still offline; next update expected from Zerion team
The precautionary shutdown, while temporarily disruptive to web users, has drawn positive feedback from the community for prioritizing safety over uptime.
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