The cost of 143 tokens from the Bored Ape Yacht Club (BAYC) NFT collection, which were marked with suspicious activity by the OpenSea marketplace, is $13.58 million, according to Immunefi bug bounty platform specialists.
134 out of 143 tokens worth $12.64 million retain this status.
The most expensive BAYC in this sample was last traded at 194 ETH ($267,914).
Such NFTs cannot be bought, sold, or transferred using the OpenSearch feature.
OpenSea does not store tokens on the platform. Attackers can use other services to transfer or sell stolen NFTs or interact with interested users directly.
After the transfer of ownership, the token may lose such marking. Immunefi cited Bored Ape #9988 as an example. The NFT changed hands as a result of a 6.13 ETH swap to Bored Ape #753 in the NFTX liquidity pool.
The experts recalled that the best protection of tokens from intruders is the cold storage of assets. Users fall prey to hackers through phishing, malicious links and programs, and viruses.
In the event of an attack on the NFT marketplace, experts recommended canceling any access to the platform and moving the tokens to a hardware wallet.
