Symbiosis Recovers 15 BTC from Bridge Exploit and Offers 20% Bounty
Cross-chain liquidity protocol Symbiosis announced recovery of 15 Bitcoins worth approximately $1.1 million following a Bitcoin bridge hack on Friday. While the protocol’s native Bitcoin bridge remains paused, all other routes continue to operate. Symbiosis is offering a 20% bounty for information leading to asset recovery after a previous white-hat bounty for the hacker expired without fund return.
Details of the Exploit and Asset Recovery
Symbiosis suffered a Bitcoin bridge exploit on Friday where the attacker minted 46.1 billion unbacked tokens according to blockchain security firm Blockaid. Despite the enormous token minting, the attacker’s net proceeds amounted to about 4.3 Wrapped Bitcoin (WBTC), roughly $336,000.
The protocol reported recovering 15 BTC into a team-controlled multi-signature wallet. While all other routes remain operational, the native Bitcoin bridge itself remains paused. The relationship between the recovered coins and the attacker’s proceeds has not been specified by Symbiosis.
Bounty Program and Next Steps
Initially, Symbiosis offered a 20% white-hat bounty for the attacker to voluntarily return the funds, but the deadline expired on Sunday without compliance. Now, the protocol offers a 20% bounty to any party providing information that leads to the recovery of stolen assets.
Symbiosis also announced plans to disclose a compensation framework for affected liquidity providers, indicating efforts to address losses faced by the community.
Context and Previous DeFi Bridge Exploits
Bridge exploits remain a significant challenge for decentralized finance. In June, Secret Network experienced an “infinite mint” vulnerability leading to a loss of about $4.6 million worth of assets.
In May, the Verus-Ethereum bridge was drained through a forged cross-chain transfer hack resulting in the theft of 5,402 Ether, valued near $11.6 million then. The hacker returned 75% of the stolen funds following a 25% bounty offer but retained roughly 1,350 Ether, approximately $2.8 million.
Why it matters
The recovery of 15 BTC following a significant exploit demonstrates Symbiosis’s active response measures and underscores the critical need for liquidity protection in DeFi ecosystems. Offering a 20% bounty encourages community engagement in combating cybercrime and potentially returning stolen assets. The protocol’s plans to compensate affected liquidity providers highlights accountability toward users. Bridge exploits remain a systemic risk for the industry, pushing participants to seek more secure bridging solutions and risk mitigation strategies.
Prepared from the source material with AI-assisted editing and checked against the supplied facts.
Open original source ↗