ArbGuard solves the main Web3 dilemma: how to achieve absolute asset security without sacrificing the convenience of a standard wallet.
What It Is
ArbGuard is an institutional-grade, AI-powered Web3 security shield designed specifically for the Arbitrum ecosystem. It leverages a Dual-Echelon Hybrid Architecture to provide absolute asset security without forcing users to abandon the convenience of their standard EOA wallets (like MetaMask).
What It Does
It actively protects users from phishing, drainers, and hidden off-chain signatures (such as malicious Permit2 approvals) while maintaining a 100% native user experience. ArbGuard achieves this by analyzing transactions on-the-fly at the RPC level to block threats preventatively, and providing a decentralized, one-click "Panic Button" via EIP-7702 to instantly revoke access and evacuate funds if a compromise occurs.
Smart Contracts (Arbitrum Sepolia):
SmartGuardExecutor:
0xe265b07E59B8140233089B1a7A3614373425208c
SmartGuardCaveatEnforcer:
0x7a18Db2bE09A45bA1561542B7c564b4BCb65EBe0
GitHub: https://github.com/epexa/ArbGuard
Live dApp Demo: https://app.arbguard.network
Technical Documentation: https://arbguard.network
Presentation: https://docs.google.com/presentation/d/1FiwYUv-knCSbF3GM-Euiup0wMhoyumFWh1_Z9DzSSgY/edit?usp=sharing
Pitch video: https://www.youtube.com/watch?v=LD6d7w2dGzs
Demo video: https://www.youtube.com/watch?v=7oToevMu3fM
The 1-Click Vulnerability
Standard Externally Owned Account (EOA) wallets are fundamentally defenseless against malicious intents. A single interaction with a phishing site or a hidden Permit2 signature is enough to drain an entire portfolio. Historically, users face a terrible UX dilemma: they must choose between safe but slow and complex multi-sig setups, or the convenience of a highly vulnerable standard wallet. ArbGuard completely eliminates this compromise.
Dual-Echelon Defense System
ArbGuard bridges AI-driven transport security with a decentralized lifeline right at the blockchain level.
Echelon 1 (Preventive Defense): An invisible, AI-powered firewall operating at the RPC transport layer. It intercepts and blocks malicious requests before they ever reach the blockchain.
Echelon 2 (Emergency Defense): An on-chain safety fuse utilizing the cutting-edge EIP-7702 standard. It acts as a decentralized lifeline, allowing users to instantly evacuate assets if the first line of defense is bypassed.
1. The Backend: AI RPC Firewall (Preemptive Protection) A security proxy server at the intersection of Web2 and Web3.
Seamless UX: Users simply add our custom Arbitrum RPC network to their wallet. No new interfaces or complex setups are required.
Real-Time Interception: Captures the raw request via Port 8545 before it is broadcasted to the Arbitrum mempool.
Heuristic Analysis: Decodes transaction bytecode (callData) and generates an AI Risk Score with zero latency.
Automatic Rejection: Malicious requests are instantly blocked (Code -32603). Crucially, the wallet's nonce is automatically rolled back to prevent queue freezing.
2. Smart Contracts: EIP-7702 Guard (Reactive On-Chain Defense) If a user manually switches networks or leaks an off-chain signature, the reactive on-chain defense is triggered.
Smart Account Delegation: Leveraging EIP-7702 and the ERC-7579 standard, our proprietary SmartGuardExecutor contract seamlessly transforms a standard EOA into a secure smart contract without changing its address.
Atomic Batch Execution: The rescue logic executes in a single, indivisible block. This makes it mathematically impossible for MEV bots or hackers to front-run the action.
Access Revocation: All standard approvals and Permit2 signatures are instantly reset to zero.
Asset Evacuation: All tokens and ETH are swept directly to a pre-configured cold wallet.
3. The dApp: Emergency Command Center The user interface serves as the central control panel for reactive measures.
Wallet Integration: Connects seamlessly with wallets via EIP-5792 (batch call routing) and EIP-7702.
Rescue Configuration: Allows users to set up a trusted cold wallet (Rescue Address) for emergency fallbacks.
One-Click Evacuation: Scans on-chain balances and compiles a targeted Multicall. The rescue transaction is signed and broadcasted directly by the cold wallet, requiring no backend permissions or approvals from the compromised EOA.
While competitors attempt to secure transactions through fully decentralized AVS operator networks, they suffer from massive network latency during transaction simulation. ArbGuard solves this bottleneck by shifting the heavy analytics to a high-speed AI proxy, ensuring a frictionless user experience while keeping the ultimate asset rescue mechanism completely decentralized.
ArbGuard is designed to scale across all levels of the Web3 ecosystem:
B2C (Direct Market): Protecting DeFi degens and airdrop hunters with an emergency "rescue button" without changing their daily UX.
B2B2C (Wallet Integration): Embedding the RPC firewall under the hood of market leaders like MetaMask or Rabby as a premium "Safe Mode."
B2B (dApp Collaborations): Partnering with major DeFi protocols to prompt users to switch to the ArbGuard secure network at the exact moment of contract interaction.
B2D (Infrastructure Licensing): Selling the AI engine's API to major infrastructure providers (Alchemy, Infura) to secure millions of transactions at scale.