> For the complete documentation index, see [llms.txt](https://ottochains-organization.gitbook.io/ottochain-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ottochains-organization.gitbook.io/ottochain-documentation/why-ottochain/interoperability-and-security.md).

# Interoperability and Security

Ottochain pioneers the Octopus 2.0 Interchain Security mechanism, reinforcing the security and integrity of appchain consensus with an accompanying layer 1 blockchain, NEAR Protocol. By adopting this innovative approach, Ottochain addresses concerns related to potential attacks and low token valuations, providing a robust foundation for users to transact and interact with confidence. As a CometBFT-based Cosmos chain it is capable of IBC connections with over 100 other blockchains totaling \~$10 billion in market capitalization. Additionally, its JSON-RPC interface allows EVM-chain users to utilise their existing addresses on Ottochain without creating new accounts. The official instructions to access the testnet or mainnet for Metamask users can be found [here](https://support.metamask.io/hc/en-us/articles/360043227612-How-to-add-a-custom-network-RPC#h_01G63GGJ83DGDRCS2ZWXM37CV5).

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