Echo Protocol shuts down after two years, halts new deposits and borrowing

Echo Protocol announced on October 19, 2026, that it is concluding operations after nearly two years, immediately halting new deposits, borrowing, and liquid staking while managing approximately $10.71 million in total value locked. Existing users can withdraw funds and repay loans, but borrowers face collateral liquidation if unpaid by November 14 or the final deadline of November 19, 23:59 UTC. The closure follows a May 2026 exploit on its Monad deployment that minted $816,000 in unauthorized eBTC.

Echo Protocol shutdown announcement

• ▪Echo Protocol announced on October 19, 2026, that it is winding down operations after nearly two years.
• ▪Echo Protocol halted new lending deposits, borrowing, strategy deposits, liquid staking, and interest accrual on lending positions.
• ▪Echo Protocol had approximately $10.71 million in tracked total value locked at the time of its wind-down announcement.

Withdrawal and redemption processes

• ▪The Aptos-to-B² Bridge used for aBTC redemptions will remain available after Echo Protocol concludes its wind-down.
• ▪Echo Protocol users can process asset withdrawals, release collateral, exit strategy positions, and process unstaking claims through existing procedures.
• ▪Withdrawal and repayment processes for Echo Protocol lending, liquid staking derivative, and strategy positions began at 00:00 UTC on October 19, 2026.

Wind-down deadlines and liquidation

• ▪Echo Protocol left the dates for final collateral liquidation and the distribution of proceeds unconfirmed during its wind-down announcement.
• ▪Echo Protocol required debt repayment by November 14, 2026, and set November 19, 2026, at 23:59 UTC as the final deadline for repayments, withdrawals, and unstaking before liquidation, creating risks and delays.

May 2026 exploit and response

• ▪Echo Protocol responded to the May 2026 exploit by pausing cross-chain activity, updating smart contracts, and burning 955 eBTC traced to the attacker.
• ▪In May 2026, attackers gained access to an admin key on Echo Protocol's Monad deployment and minted approximately $816,000 worth of unauthorized eBTC.
• ▪Echo Protocol stated that its Aptos systems showed no direct compromise during the May 2026 exploit and did not link the October 2026 shutdown to that incident.

Other crypto platform shutdowns

• ▪HypurrFi announced its operational wind-down on May 15, 2026, with Euler Finance maintaining its contract stack on the Hyperliquid EVM.
• ▪BitMart announced on July 26, 2026, a phased platform shutdown with spot and futures trading ending August 26, 2026, and full operations concluding January 31, 2027.
• ▪On September 15, 2026, Balancer published a forum proposal authored by former CEO Marcus Hardt to wind down the protocol and return treasury assets to BAL holders.