Vaultless cross‑chain bridge launched
A new cross‑chain bridge called VexBridge claims to remove custody risk by enabling direct, vaultless execution across chains, which could reduce common bridge‑hack losses. The announcement on X positions the protocol as a decentralised alternative to custodial vaults that have been frequent exploit targets. (x.com)
Most crypto bridges work like a warehouse: you lock coins in one chain, the bridge stores them in a vault, and it prints a receipt on another chain. That warehouse model has been a favorite target for attackers, and Chainlink says cross-chain bridges have been hacked for more than $2.8 billion so far. (chain.link) VexBridge says it is removing that warehouse entirely. Its docs describe a “vaultless canonical token bridge” where tokens are never parked in a custody pool that can be drained in one hit. (docs.vexidus.io) For tokens that already have a burn function, the idea is simple: destroy the token on the source chain, prove that destruction, then mint the equivalent on Vexidus. The docs list examples like USD Coin, Tether, Dai, Wrapped Bitcoin, Wrapped Ether, Chainlink, and Uniswap. (docs.vexidus.io) The unusual part is how VexBridge handles coins like native Ether, native Solana, and native Bitcoin, which cannot normally be burned by a token contract. Vexidus says those assets are sent to an address format that does not exist on the source chain, making them “provably unspendable,” and then a canonical equivalent is minted on Vexidus. (docs.vexidus.io) That is the whole pitch in one sentence: if there is no central vault full of assets, there is no giant pot for a hacker to empty. Vexidus repeats that point in its product materials and says the design is meant to avoid the “honeypot vault model” behind many bridge exploits. (vexidus.com) This is not a small corner of crypto plumbing. Chainlink says bridges now handle more than $6 billion in monthly volume, which is why bridge design keeps getting attention even from people who do not care about the rest of the stack. (chain.link) Researchers have been warning that bridge risk is broader than one bad multisignature wallet or one coding mistake. A 2024 academic survey from Ohio State University, George Mason University, and Southern University of Science and Technology identified 12 attack vectors and grouped past bridge incidents into 10 categories. (zhiqlin.github.io) VexBridge is also making a tradeoff instead of performing magic. Its docs say some assets are “full round trip,” but native coins like native Solana and native Ether are “one-way-in” unless there is separate liquidity matching, because nobody can mint new native Ether or native Solana on their home chains. (docs.vexidus.io) So the launch is really a bet on a different security model. Instead of trusting a bridge to guard a vault forever, VexBridge is asking users to trust proofs that an asset was burned or stranded beyond use before a new version appears on the destination chain. (docs.vexidus.io) Whether that holds up will depend on the proof system, the contract code, and the edge cases around assets that cannot cleanly come back home. But the basic change is clear: move the risk away from one giant vault, and you remove the single jackpot that made so many older bridges worth attacking. (docs.vexidus.io; chain.link)
