> For the complete documentation index, see [llms.txt](https://docs.bool.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bool.network/interoperability-protocol/dynamic-hidden-committee-dhc/security-trust-flow.md).

# Security trust flow

Bool Network applies an external verification model to guarantee the security and consistency of arbitrary cross-chain messages where the security is ultimately controlled by private keys managed in the network.

The following graph depicts the trust flow of cross-chain message security from the perspective of  a user smart contract which is represented as `Consumer` in the following case. 

<figure><img src="/files/h72eqsmTr07kzxwz7ixn" alt=""><figcaption><p>The security trust flow of cross-chain messages.</p></figcaption></figure>


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