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Bridges and cross-chain risk
Learn how representations of assets move between networks and where trust is introduced.
The Token Press education desk · Reviewed 2026-09-08
What crosses a bridge
Networks maintain separate state. A bridge coordinates messages or asset representations between them. One design locks an asset on a source network and issues a corresponding representation elsewhere; other designs use different mechanisms.
The represented token can depend on the bridge’s contracts and verification process. Its familiar name does not make it identical to every token sharing that name.
Locate the verification
Identify how the destination verifies an event on the source. A mechanism might depend on validators, a multisignature group, proofs or the security of a rollup. These arrangements have different failure modes.
Compromised signers, vulnerable contracts, incorrect message validation or failures in the underlying chains can affect bridge users. The word trustless should be checked against the actual architecture.
Work through a transfer
Draw the source asset, source contract, message verifier and destination asset. Ask which component permits redemption and what happens if one component stops. This makes otherwise vague claims about interoperability easier to evaluate.
Confirm the precise destination network and token contract before using a bridge. Read fees and withdrawal conditions from current documentation. An earlier successful transfer proves that one operation completed; it does not establish that the system is free of vulnerabilities or that the next transfer will have identical conditions.
Sources & further reading
Educational content. Examples are illustrative. Consult the linked documentation for current details.