# Approximately 4,000 BTC Exits Crypto Bridge: Claims of Rescuing Funds Questioned

> As approximately 4,000 BTC was withdrawn from the Liquid bridge, the “whitehat” message sent was questioned, calling for communication with the Blockstream security team. It was reported that approximately 4,000…

**As approximately 4,000 BTC was withdrawn from the Liquid bridge, the “whitehat” message sent was questioned, calling for communication with the Blockstream security team.**

It was reported that **approximately 4,000 BTC** was withdrawn from the **Liquid bridge**, which enables Bitcoin to be moved between different blockchain infrastructures. In the on-chain message within the transaction, the sender identified themselves as a “whitehat.” However, a divergence of opinion has emerged regarding the nature of this statement.

According to Wu Blockchain, Ledger CTO **Charles Guillemet** criticized the expression **“We are whitehats. Contact us on chain”** found in the **OP_RETURN message** embedded in the transaction. OP_RETURN is used as a field that allows short messages to be added to Bitcoin transactions.

### Transaction on Liquid Bridge Escalates Security Debate

Guillemet argued that a party identifying themselves as a “whitehat” withdrawing funds from a bridge and then requesting communication on-chain **is inconsistent with whitehat behavior**. Consequently, the transaction raised more questions about the bridge’s security than a standard transfer would.

The transaction record showed an **exit of approximately 3,998.5 BTC**, while a call for communication was included in the message section. Following the development, **Blockstream** invited the involved party to contact their security team on-chain.

While the purpose of the transaction and the final status of the funds remain unclear, the tension between the exit of approximately 4,000 BTC and the whitehat claim persists.