The following wallet on Etherscan shows 3 transactions of Wrapped Ether (WETH) being transferred in under the ERC-20 transactions tab, a large amount, but not how they are transferred out, assuming that the wallet owner did move the funds out
How were they able to move the WETH out of the wallet without it appearing in Etherscan? Might they have converted the funds using a DeFi swap platform to a stablecoin or Monero or something that was untraceable?