Hackers Return 85% of Stolen Bitcoin from Last Week's Bridge Attack

Market impact: mildly bullish for BTCUSD, but with residual risk.

The return of approximately 3,400 BTC materially reduces the immediate liquidation and contagion risk from the Liquid bridge exploit. Had the full 3,998 BTC remained under attacker control, markets would have had to price in the possibility of a large over-the-counter or exchange sale, as well as uncertainty over Liquid’s backing and the L-BTC peg. The recovery therefore removes a significant near-term supply overhang and should be comparatively supportive for Bitcoin sentiment.

The effect is likely more important for Liquid and Bitcoin sidechain confidence than for BTC’s broader valuation. The returned coins do not create new Bitcoin supply, but they improve confidence that most of the affected reserves remain recoverable. The bridge was patched and the transfer was publicly authenticated by Blockstream, which reduces the probability of a continuing technical exploit. However, Liquid services reportedly remain halted and the treatment of the remaining roughly 598.5 BTC—about $47 million at the article’s cited price—has not been explained.

That unresolved balance creates two opposing interpretations:

• Bullish: the remaining BTC represents a negotiated bounty or will also be returned, leaving limited permanent damage and reducing the chance of forced selling.
• Bearish: the attackers retain effective control, potentially creating future distribution risk and prolonging concerns over bridge governance, reserve coverage, and institutional custody standards.

For BTCUSD, the direct supply impact is probably modest relative to macro liquidity, ETF flows, derivatives positioning, and broader risk appetite. The news should therefore be treated as a reduction in an idiosyncratic crypto risk premium, not as a standalone catalyst for a sustained trend. Short-term volatility could still rise if the remaining coins move to exchanges, if L-BTC withdrawals remain suspended, or if Blockstream discloses a reserve shortfall or compensation requirement.

Traders should monitor the remaining address for transfers, confirmation that all bridge nodes were patched, restoration of Liquid deposits and withdrawals, the L-BTC/BTC peg, and whether exchanges continue imposing restrictions. A further return would strengthen the relief interpretation; movement of the retained coins toward exchanges or evidence of unrecovered reserves would reverse it.