Wormhole is a cross-chain interoperability protocol. Cross-chain messages are relayed by a set of 19 "guardians", who publicly known.
Trustlessness by LI.FI
• Guardians will not collude as long as the benefit of collusion is less than the reputational cost.
• Guardians’ stake is not bonded, i.e., their stake won’t be slashed, or they won’t be penalized if they act maliciously.