MetaMask launches $9.99/mo Transaction Shield with up to $10K monthly refunds

MetaMask has launched Transaction Shield, an opt-in premium protection for its browser extension that combines pre-signature on-chain threat screening with a refund promise when MetaMask’s checks incorrectly mark a malicious transaction as “safe.” Launched in early access on December 2, 2025, the plan costs $9.99/month or $99/year (annual discount) and includes a 14-day free trial for new users. Coverage reimburses up to $10,000 per month across a maximum of 100 qualifying transactions. Users must file claims within 21 days; approved payouts are typically processed in about 15 business days and paid in MetaMask’s dollar-denominated stable asset mUSD. Transaction Shield supports major EVM chains (Arbitrum, Polygon, Base, BNB Chain and reportedly Linea, Avalanche, Optimism, Sei) and is extension-only at launch, with mobile support scheduled later. The policy excludes losses from compromised keys/seed phrases, credential-phishing, protocol-level exploits and market losses (slippage/price crashes); it applies only when MetaMask’s screening mistakenly classifies a draining transaction as safe. MetaMask positions the product as a shift from passive warnings to a consumer-style guarantee amid rising crypto losses in 2025. For traders, the limited $10K monthly cap and 100-transaction ceiling may leave high-value users underinsured, but the clearer claims workflow, repayment timeline and multi-chain scope provide retail users a defined remediation path after approving malicious transactions that passed MetaMask’s checks.