The hacker behind the Mercado Bitcoin breach is actively liquidating stolen assets, having moved $11.45 million in altcoins to multiple addresses for sale. On-chain data indicates the attacker is consolidating proceeds into ETH at address 0x469189223f286b51198163b4Eb5a1e532669523d. The fund movement suggests an ongoing effort to convert illiquid tokens into more easily tradable assets following the exchange exploit.