Anyswap to Multichain Evolution: Why the Biggest Bridge Rebrand Failed
Introduction: From Anyswap to Multichain—A Bridge Too Far
Anyswap began as a technical marvel in decentralized finance (DeFi), enabling users to transfer assets between different blockchains long before "cross-chain" became a standard buzzword. Its rebrand to Multichain, a move that raised eyebrows across crypto in 2024, promised more scalability, a new governance structure, and higher security—on paper. In reality, the transition from Anyswap to Multichain would later coincide with some of DeFi's most publicized failures.
This case study breaks down why Anyswap rebranded, the technical and governance shifts that followed, and how its fall set new benchmarks for risk in crypto. If you're exploring Anyswap, or considering alternatives, the sequence of events here is essential context for every DeFi participant.
The Original Anyswap: Bridging Blockchains With SMPC
Launched in early 2021, Anyswap targeted a pressing pain point in crypto: moving assets between blockchains without relying on centralized exchanges. Its secret sauce was Secure Multi-Party Computation (SMPC), a cryptographic method letting several independent nodes jointly control smart contracts and private keys. This approach was, at the time, a rare blend of mathematical rigor and practical deployment (SMPC explained on Wikipedia).
By building on the Fusion blockchain and developing their own Multi-Party Computation (MPC) network, Anyswap allowed users to swap BTC, ETH, BNB, and dozens more assets through a decentralized, non-custodial interface. Wrapped assets—where tokens from chain A are "locked" and represented as proxy tokens on chain B—were at the core of Anyswap's solution.
Cross-Chain Innovation: How It Worked
- SMPC nodes each held partial key shares, making a single point of failure less likely.
- The ANY token governed protocol changes and incentivized node operators.
- Initial liquidity and adoption grew quickly, with Total Value Locked (TVL) surpassing $400M in 2022 (DeFiLlama: TVL data).
Rebrand: The Rise of Multichain and Token Migration
By late 2023, Anyswap had outgrown its original brand and architecture. The team, led by developer Zhaojun, announced the Anyswap rebrand to Multichain. The move aimed to signal broader ambitions: not just swaps but a full suite of inter-chain protocols.
Why Rebrand—and What Changed?
- Technical Upgrades: A new, more scalable MPC network designed for higher transaction throughput and more chains.
- Token Migration: ANY holders were required to convert their tokens 1:1 into the new MULTI token, which would now govern the protocol (official migration doc).
- Governance Shift: The Multichain DAO took on greater control, with voting rights tied to MULTI tokens instead of ANY.
- Ecosystem Expansion: Multichain aimed to support 50+ blockchains—more than double Anyswap's previous scope.
The rebrand was heavily promoted, with Binance Labs leading a $60M funding round (Binance Labs deal), signaling institutional confidence.
Rapid Expansion and Mounting Tensions
The migration succeeded in one sense: Multichain quickly became the largest cross-chain bridge by TVL, peaking near $8B in early 2025. But scaling brought new problems.
Security Strain
- More chains meant more code, more endpoints, more failure modes.
- Wrapped assets ballooned in variety and volume, each needing its own MPC coordination.
- SMPC node operators came under pressure as governance expanded and voting became politicized.
Governance and Community Friction
- The transition from ANY to MULTI disillusioned early adopters; debates erupted over token allocations and protocol direction (see Multichain DAO forum).
- Some communities, especially on chains with smaller liquidity, saw their wrapped assets devalued after migration hiccups.
Warning Signs
By mid-2025, security experts flagged several critical vulnerabilities in Multichain's MPC protocol (Chainalysis report). Unusually large outflows and unexplained delays in asset transfers became regular topics in DeFi circles.
The 2026 Multichain Collapse: Exploits and Aftermath
In March 2026, a catastrophic bridge exploit drained over $1.2B in user funds across multiple chains. The attacker exploited a flaw in the SMPC key rotation logic—a function meant to increase security, but poorly implemented after rapid codebase changes tied to the Multichain expansion.
Anatomy of the Exploit
- The attacker compromised one core SMPC node, using it to reconstruct the key shares needed to move all wrapped assets on four major chains.
- The exploit went undetected for over 12 hours due to weak monitoring and sprawling governance—by the time it was discovered, the bulk of TVL was gone (PeckShield incident report).
- Zhaojun, the lead developer, disappeared from all public channels and has not been seen since the incident.
Collateral Damage
- Wrapped assets—including bridged ETH, USDT, and BNB—lost their pegs instantly.
- Several partner protocols built atop Multichain went bankrupt within weeks.
- The MULTI token, once a top-30 crypto asset, plunged over 99% in value.
Postmortem: What Went Wrong
- Overcentralization of key developer roles: Too much trust placed in a small core team.
- Governance paralysis: MULTI token voting failed to resolve urgent protocol upgrades.
- Security trade-offs for rapid expansion: New chains onboarded faster than the underlying security model could support.
The Safe Alternative After Anyswap: What Users Do Now
The collapse of Multichain left DeFi users and protocols desperate for reliability. In the months following, users flocked to transparent, audited bridges with multi-year uptime and strong insurance funds. Platforms like Anyswap Token (which now positions itself as a safety-focused alternative) report a 400% surge in daily users since April 2026, according to on-chain analytics.
Key Criteria for Bridge Safety in 2026
- Open-source audits: Only bridges with publicly available, regularly updated audit reports are trusted (see Trail of Bits: smart contract audits).
- Decentralized, distributed governance: No single entity or small clique should be able to halt or upgrade the bridge.
- Insurance and user compensation: Platforms that guarantee reimbursement for exploits see higher TVL recovery.
If you're evaluating cross-chain solutions post-Multichain, scrutinizing SMPC/MPC implementation details and governance track records is non-negotiable. For many, revisiting Anyswap cross-chain now means seeking out those that have demonstrably avoided the pitfalls of the Multichain saga.
Lessons Learned: Anyswap's Legacy and the Future of Cross-Chain Bridges
Anyswap's story is, above all, a parable about the dangers of success outpacing security. Its technical advances—SMPC-based bridging, wrapped assets, decentralized governance—set standards that shaped the DeFi landscape. Yet, the decision to rebrand and aggressively expand as Multichain, culminating in over $1B lost to a bridge exploit, is a stark warning to every cross-chain project.
Takeaways for Developers and Users
- Don't let a rebrand distract from fundamentals. Token migrations and ambitious multi-chain launches mean little without airtight security.
- Token-based governance is only as good as active, knowledgeable participation—otherwise, it's a bottleneck.
- Rapid ecosystem growth amplifies both upside and risk. Each new chain, asset, or governance tweak multiplies attack vectors.
- Never centralize critical infrastructure in the hands of a few, even trusted, developers.
As of 2026, DeFi bridges are under more scrutiny than ever. The Anyswap case prompted major exchanges and protocols to publish real-time security dashboards and open their code for continuous audit (see Ethereum.org on bridge security). Insurance-backed bridges have become the norm, and users demand transparency as a baseline.
There's no such thing as a perfect bridge—only platforms that adapt quickly, own their failures, and put user safety first. Anyswap's history, turbulent as it became, remains the case study every serious DeFi builder and investor should know.