// FAQFrequently Asked Questions
Is NEXUS Protocol safe to use?
Yes. NEXUS is fully non-custodial — we never store, transmit, or have access to your private keys. All sensitive data is encrypted client-side using AES-256 before any processing occurs.
What happens if the fix doesn't work?
If the automated resolution fails, our support team is notified instantly. You'll receive manual assistance within 2 hours with a full refund guarantee for paid services.
Which chains are supported?
We support 30+ chains including Ethereum and all EVM-compatible networks, Solana, XRP, BNB Chain, Polygon, Arbitrum, Base, Optimism, Avalanche, Cosmos, and more.
How long does resolution take?
94% of issues are resolved in under 2 seconds. Complex cross-chain operations may take up to 2 minutes. You'll receive real-time status updates throughout.
Can I use NEXUS on mobile?
Yes, the web interface is fully responsive and works on all mobile browsers. Native iOS and Android apps are currently in beta and launching Q3 2026.