tBTC Bridge Partially Resumes as $120M Aave Reserve Remains Frozen

Threshold Network has brought its tBTC bridge back online following a nine-day security pause, while a major decentralized finance lending market continues to restrict the asset. The infrastructure restart allows the underlying network to reconnect as security-patched node operators return to process deposits and redemptions for users tracking the tBTC bridge developments.

On Sunday, project representatives announced that independent node operators, who collectively authorize Bitcoin movements, were reconnecting to restart the network. Requests submitted prior to the service suspension will be handled as operator participation increases. However, the application will not process new deposits, minting activities, or redemptions until a sufficient number of nodes are fully online, and officials have not specified a complete restart date.

The service disruption began on October 30 when the network was halted to address a critical Linux kernel vulnerability that could have allowed remote attackers to execute code on unpatched servers. Project developers reported finding no evidence that the security flaw was successfully exploited against any tBTC nodes during the operational pause.

Protecting Aave

In response to the initial security halt, Aave froze its tBTC reserve on Ethereum Core on October 31 to limit exposure while redemptions remained unavailable. This restriction prevents users from making new tBTC deposits or utilizing the token to increase borrowing capacity, although existing participants retain the ability to withdraw funds and repay active loans. LlamaRisk, an Aave risk provider, indicated it would submit a proposal to restore the reserve once normal operations resume fully.

Threshold officials reported that approximately 4,320 Bitcoin remains secured in bridge wallets compared to roughly 4,185 tBTC in circulation across the ecosystem. Auditors and network monitors detected no unauthorized Bitcoin transfers or unsanctioned token minting throughout the security event.

Threshold resumed its tBTC bridge operations after a nine-day pause, while a $120 million Aave reserve stays frozen.

Why it matters

The partial resumption of the infrastructure impacts decentralized finance participants relying on cross-chain assets and lending platforms. While existing borrowers can manage their positions, the continued restrictions on new deposits and borrowing power demonstrate the cautious approach protocols take to safeguard user funds following potential server vulnerabilities.