The Singapore High Court has allowed financial investigation firm iSanctuary to join non-fungible tokens (NFTs) to cold wallets linked to a hack. These NFTs, representing a court-issued worldwide freeze order, act as vigilance to potential counterparties and exchanges regarding the wallet's involvement in illegal activities. iSanctuary has also found a method to track funds leaving wallets through these NFTs. The case coincides with a stolen private key, with Singapore-based crypto exchanges reportedly involved in laundering the stolen funds across multiple countries. This innovative approach may serve to police the blockchain and identify holders of illegal assets.