Wanchain Bridge Exploit Drains 515M NIGHT, Sending Token Price Sliding

Midnight's NIGHT token sold off sharply after an exploit on a Wanchain bridge route allowed attackers to siphon 515 million NIGHT, worth about $13.2 million, according to on-chain records and project disclosures. Wanchain has halted the affected route as teams and traders work to quantify the fallout. What happened Available evidence points to a signature-reuse weakness in the bridge's cross-chain authorization flow. Investigators say attackers were able to reuse or manipulate signatures to approve transfers that should not have cleared. The resulting outflow of NIGHT through the bridge route sparked a rapid drop in liquidity and market confidence, accelerating the price decline. Wanchain paused the route after detecting the activity. Why this is not a Cardano base-layer breach The incident is being characterized as a bridge-level failure, not an intrusion into Cardano's Layer-1 or a compromise of Midnight's validator infrastructure. The impacted components were bridge smart contracts and cross-chain systems used to route assets to Cardano-connected paths, rather than Cardano validator nodes. While bridges can fail independently of the underlying chains, markets often price the event as ecosystem-wide risk. Why bridges carry higher risk Cross-chain bridges expand liquidity but depend on signing mechanisms, key management, validators or relayers, wrapped-asset designs, and complex contract logic. Weakness in any layer can be exploited. Signature-related issues are especially severe because they erode the authorization model itself, enabling unauthorized transfers. Even if the base chain remains secure, stolen tokens in circulation can increase sell pressure, drain liquidity, and weigh on price. What the market is watching next Participants are looking for updates on whether other routes remain paused and when service could resume. Key questions include whether the stolen NIGHT can be tracked, frozen, or recovered; whether blacklisting or other containment measures will be used to limit market impact; and what fixes, audits, or governance changes will be implemented before reopening. Communication and next steps Projects typically contain the damage faster when they provide clear timelines, transaction evidence, mitigation measures, and compensation plans. For Midnight, the near-term task is both technical remediation and restoring confidence in the cross-chain route. Takeaway for traders and projects Cross-chain convenience comes with added assumptions and attack surface. Bridge security depends on controls such as key handling, signature validation, validator design, auditing, monitoring, and emergency shutdown mechanisms. Traders often treat bridge exposure as part of token risk, as heavy reliance on cross-chain liquidity can amplify volatility even when the underlying protocol remains intact. This report is based on Wanchain's public statement and CardanoScan transaction data. Written by the News Desk; edited by Samuel Rae. Information is derived from official primary-source disclosures.