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Radiant Capital Hack: $58M Cross-Chain Attack Analysis
In-depth analysis of the Radiant Capital exploit that resulted in $58 million in losses across multiple chains.
ExVul Research Team
Security Researchers
March 202515 min
#Radiant#Cross-chain#Hack Analysis
Executive Summary
Radiant Capital suffered a sophisticated attack resulting in approximately $58 million in losses. The attack exploited compromised multi-sig keys to drain funds across multiple chains.
This attack highlights the critical importance of key management and the risks of centralized control in cross-chain protocols.
Attack Methodology
- Attackers compromised 3 of 11 multi-sig signers
- Malicious transactions were crafted to appear legitimate
- Funds were drained simultaneously across Arbitrum and BNB Chain
- Stolen assets were quickly bridged and laundered
Lessons Learned
Key Security
Hardware wallets and air-gapped signing essential
Multi-sig Threshold
Higher thresholds provide better security
Monitoring
Real-time alerting on unusual transactions