Threshold Network has paused tBTC minting and redemptions while it carries out what it calls security maintenance, and Aave has followed by shutting off new deposits of the token and new borrowing against it. Neither Threshold nor Aave has reported any loss, exploit or compromise, and both describe their steps as precautions.
The two moves sit about 12 hours apart. Threshold announced its pause late on Friday 30 October, and Aave’s guardian froze the token on its largest market on Saturday morning. Together they show how a bridge operator and a lender try to limit exposure to a wrapped asset while nobody yet knows when normal service returns.
What Threshold has paused, and what still works
tBTC is Threshold’s version of bitcoin on Ethereum and other networks: users deposit BTC, receive the wrapped token and can later redeem it for BTC. At 22:35 GMT on 30 October, Threshold said it had “temporarily paused new BTC deposits/tBTC minting and new Bitcoin redemption requests through the Threshold app as a precaution while security maintenance is completed.”
Redemptions already under way are only partly affected. Threshold said they “may still be paid on Bitcoin, but final settlement on Ethereum is paused and some transactions may be delayed.” It asked users to stop sending BTC to deposit addresses created before the pause and to stop starting new operations through other front ends.
For anyone with a deposit in flight, the advice was practical: “keep your deposit receipt and transaction hashes”, resist resending a transaction to clear a pending status, and follow its progress in the app’s Explorer. The pause “does not affect holding, transferring or using tBTC”, Threshold said. It has given no restart time and has promised an estimate “when available”.
Aave froze the tBTC reserve on Ethereum Core
Aave’s response came on the advice of LlamaRisk, one of its risk service providers. In a post on Aave’s governance forum, LlamaRisk said it recommended a pre-emptive freeze of the token on Aave V3 Ethereum Core and proposed the transaction to the guardian multisig, which executed it at 10:01 GMT.
The token’s Base and Arbitrum reserves had already been frozen in earlier asset deprecation rounds, LlamaRisk said, so Ethereum Core was the only Aave market where the token could still back new loans. Aave said on X the restriction was “a routine, proactive step” and that “Aave’s contracts are not affected”. The Defiant reported that the Ethereum Core market holds about $136.5 million in tBTC deposits.
Existing borrowers are largely untouched. LlamaRisk said on X that existing positions “keep their health factors, and repay and withdraw work normally.” Its forum note adds that liquidations still run, that the asset keeps its liquidation threshold so no position becomes liquidatable because of the freeze, and that “No other reserve is affected, and no market has been paused.” Aave said new deposits and borrows will reopen once Threshold’s maintenance is complete.
LlamaRisk’s forum post says the freeze will stay “until the incident is confirmed to be fully mitigated by Threshold”. Neither party has said what that refers to, and Threshold’s own notice speaks only of maintenance.
Freezing the reserve caps exposure without trapping borrowers
The design of Aave’s response matters more than its speed. A freeze is a narrow tool: it stops the lender’s exposure to one asset from growing, while leaving existing users free to repay, withdraw or add collateral. That contrasts with a full market pause, which would also lock people out of managing their own positions. Lenders are judged as much on what they leave running during uncertainty as on what they stop.
For risk and compliance teams, the episode is a useful test of how much a wrapped asset depends on its issuer’s operations. Holders can still move the token, but the routes in and out of bitcoin are shut until Threshold reopens them, and the asset’s usefulness as collateral now hangs on a timetable nobody has published. When Aave faced questions about its exposure earlier this month, after a Base vault lost about $6m, the problem sat in a layer above its core contracts. Here, too, the pressure comes from outside Aave.
Disclosure is the open gap. A precautionary pause is good practice, but “security maintenance” without detail leaves users to infer the risk for themselves, and Aave’s governance reaction rests on assurance it has yet to receive. The contrast with Binance’s confirmed theft, reported on 30 October is sharp: there, losses were stated and quantified; here, no one has reported any loss at all.
Bitcoin collateral is a growing bet for lenders
The timing is awkward for bitcoin in decentralised lending. Earlier this month Babylon Labs proposed native bitcoin as collateral on Aave V4, pitching a route that avoids wrapped tokens altogether. Each pause in a wrapped-bitcoin bridge gives that debate fresh material, whichever way it is read.
The next marker is Threshold’s promised update with an estimated time for resuming normal operations. LlamaRisk says it will propose lifting the freeze in the same forum thread once it has assurance that Threshold’s operations are back to normal.
Sources
- Threshold Network on X: tBTC minting and redemptions temporarily paused, 30 October 2026
- Aave on X: new tBTC deposits and borrows restricted, 31 October 2026
- LlamaRisk on X: Aave V3 Ethereum Core tBTC freeze, 31 October 2026
- LlamaRisk on the Aave governance forum: tBTC Mint & Redeem Pause: Aave’s Response
- The Defiant: Aave Freezes tBTC Reserve After Threshold Pauses Minting and Redemptions
Related stories
- Babylon Labs Proposes Native Bitcoin as Collateral on Aave V4
- Base vault ~$6m loss: whitelist change, not an Aave core breach
- Binance Says It Will Cover All Losses From a $6.3bn Hack; $3bn Frozen
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