Cross-Chain account

By leveraging Cross-Chain technology, the Vault can securely transfer assets between the TON Chain and external Chains, allowing access to a broader range of DeFi yield opportunities.

Cross-Chain Account

A dedicated proxy smart contract account is deployed on each external chain. This account receives execution commands from the TON Vault and executes transactions on its behalf, acting as the operational gateway for external DeFi protocols.

Strict Cross-Chain Control

The system enforces strict multi-layered security protocols for all cross-chain operations:

• Asset/Protocol Whitelist: The TON Vault pre-specifies and rigorously enforces a whitelist defining which assets the cross-chain account is permitted to hold.

• Price Deviation Tolerance: The system compares the total account value immediately before and after a cross-chain transaction. If the value deviates beyond a set tolerance threshold (e.g., due to hacking, smart contract bugs, or abnormal slippage), the transaction is immediately reverted. This serves as a core safeguard protecting assets from abnormal losses during execution.

• Cross-Chain Integrity: Messages transmitted between the TON and other chains via the messaging layer (e.g., LayerZero) are rigorously verified to prevent forgery or replay attacks. An integrated error handling mechanism ensures the state across the TON and external chains always remains consistent and synchronized.

Cross-Chain workflow description