Militereum provides a security layer for Web3 wallet transactions. Its firewall simulates transactions, shows which tokens may leave a wallet, and blocks suspicious activity such as potentially malicious airdrops and honeypot tokens. The service works with EVM-compatible browser and desktop wallets, does not access private keys, and supports networks including Ethereum, Polygon, Optimism, Arbitrum, and Goerli. Militereum is open source and provides setup guidance for MetaMask, Trust, Frame, and Coinbase wallets.