“Cross-Chain Assets” are funds that exist across multiple chains tied to the same address. For example, a Bitcoin address can be converted to a Komodo address where Komodo funds can be sent to. As long as you have the private key for the Bitcoin address, you can access the funds in the Komodo address. While this is cool for chain interoperability, it is not good for privacy.  The transparent mining rewards rich list provides a link to check addresses that may have been used across multiple chains. Any address that has funds for other Komodo eco-system coins would typically be an indicator of that address belonging to a Komodo notary node operator or developer. Some have already been moving funds out after this list was published.