Allbridge Core uses messaging protocols to move information between blockchains. Particularly it is used to send information about transfers and their value to the recipient's blockchain. Allbridge Core architecture allows support for multiple messaging protocols. Currently, supported protocols are:
Wormhole protocol is more decentralized, this is why it is used by default. Allbridge messaging, however is quicker (less time required to reach consensus), less expensive (smaller transactions), and supports Tron.